Merge "[SF] Update notifyExpectedPresent parameter names" into main
diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index 54eeb39..11f6994 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -52,7 +52,14 @@
 flag {
   name: "enable_touchpad_typing_palm_rejection"
   namespace: "input"
-  description: "Enable additional palm rejection on touchpad while typing"
+  description: "Enabling additional touchpad palm rejection will disable the tap to click while the user is typing on a physical keyboard"
+  bug: "301055381"
+}
+
+flag {
+  name: "enable_v2_touchpad_typing_palm_rejection"
+  namespace: "input"
+  description: "In addition to touchpad palm rejection v1, v2 will also cancel ongoing move gestures while typing and add delay in re-enabling the tap to click."
   bug: "301055381"
 }
 
diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
index 34ca0b3..255f02d 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
@@ -21,9 +21,11 @@
 #include <iterator>
 #include <limits>
 #include <map>
+#include <mutex>
 #include <optional>
 
 #include <android-base/stringprintf.h>
+#include <android-base/thread_annotations.h>
 #include <android/input.h>
 #include <com_android_input_flags.h>
 #include <ftl/enum.h>
@@ -156,13 +158,20 @@
         return sAccumulator;
     }
 
-    void recordFinger(const TouchpadInputMapper::MetricsIdentifier& id) { mCounters[id].fingers++; }
+    void recordFinger(const TouchpadInputMapper::MetricsIdentifier& id) {
+        std::scoped_lock lock(mLock);
+        mCounters[id].fingers++;
+    }
 
-    void recordPalm(const TouchpadInputMapper::MetricsIdentifier& id) { mCounters[id].palms++; }
+    void recordPalm(const TouchpadInputMapper::MetricsIdentifier& id) {
+        std::scoped_lock lock(mLock);
+        mCounters[id].palms++;
+    }
 
     // Checks whether a Gesture struct is for the end of a gesture that we log metrics for, and
     // records it if so.
     void processGesture(const TouchpadInputMapper::MetricsIdentifier& id, const Gesture& gesture) {
+        std::scoped_lock lock(mLock);
         switch (gesture.type) {
             case kGestureTypeFling:
                 if (gesture.details.fling.fling_state == GESTURES_FLING_START) {
@@ -200,15 +209,20 @@
                                                                  void* cookie) {
         LOG_ALWAYS_FATAL_IF(atomTag != android::util::TOUCHPAD_USAGE);
         MetricsAccumulator& accumulator = MetricsAccumulator::getInstance();
-        accumulator.produceAtoms(outEventList);
-        accumulator.resetCounters();
+        accumulator.produceAtomsAndReset(*outEventList);
         return AStatsManager_PULL_SUCCESS;
     }
 
-    void produceAtoms(AStatsEventList* outEventList) const {
+    void produceAtomsAndReset(AStatsEventList& outEventList) {
+        std::scoped_lock lock(mLock);
+        produceAtomsLocked(outEventList);
+        resetCountersLocked();
+    }
+
+    void produceAtomsLocked(AStatsEventList& outEventList) const REQUIRES(mLock) {
         for (auto& [id, counters] : mCounters) {
             auto [busId, vendorId, productId, versionId] = id;
-            addAStatsEvent(outEventList, android::util::TOUCHPAD_USAGE, vendorId, productId,
+            addAStatsEvent(&outEventList, android::util::TOUCHPAD_USAGE, vendorId, productId,
                            versionId, linuxBusToInputDeviceBusEnum(busId, /*isUsi=*/false),
                            counters.fingers, counters.palms, counters.twoFingerSwipeGestures,
                            counters.threeFingerSwipeGestures, counters.fourFingerSwipeGestures,
@@ -216,7 +230,7 @@
         }
     }
 
-    void resetCounters() { mCounters.clear(); }
+    void resetCountersLocked() REQUIRES(mLock) { mCounters.clear(); }
 
     // Stores the counters for a specific touchpad model. Fields have the same meanings as those of
     // the TouchpadUsage atom; see that definition for detailed documentation.
@@ -232,7 +246,10 @@
 
     // Metrics are aggregated by device model and version, so if two devices of the same model and
     // version are connected at once, they will have the same counters.
-    std::map<TouchpadInputMapper::MetricsIdentifier, Counters> mCounters;
+    std::map<TouchpadInputMapper::MetricsIdentifier, Counters> mCounters GUARDED_BY(mLock);
+
+    // Metrics are pulled by a binder thread, so we need to guard them with a mutex.
+    mutable std::mutex mLock;
 };
 
 } // namespace
@@ -449,6 +466,9 @@
     if (mPointerCaptured) {
         return mCapturedEventConverter.process(*rawEvent);
     }
+    if (mMotionAccumulator.getActiveSlotsCount() == 0) {
+        mGestureStartTime = rawEvent->when;
+    }
     std::optional<SelfContainedHardwareState> state = mStateConverter.processRawEvent(rawEvent);
     if (state) {
         updatePalmDetectionMetrics();
@@ -514,7 +534,7 @@
     if (mDisplayId) {
         MetricsAccumulator& metricsAccumulator = MetricsAccumulator::getInstance();
         for (Gesture& gesture : mGesturesToProcess) {
-            out += mGestureConverter.handleGesture(when, readTime, gesture);
+            out += mGestureConverter.handleGesture(when, readTime, mGestureStartTime, gesture);
             metricsAccumulator.processGesture(mMetricsId, gesture);
         }
     }
diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.h b/services/inputflinger/reader/mapper/TouchpadInputMapper.h
index ece0eca..897edca 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.h
@@ -113,6 +113,8 @@
     // ADISPLAY_ID_NONE to target the focused display. If there is no display target (i.e.
     // std::nullopt), all events will be ignored.
     std::optional<int32_t> mDisplayId;
+
+    nsecs_t mGestureStartTime{0};
 };
 
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp b/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
index 9552104..01e983a 100644
--- a/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
+++ b/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
@@ -35,8 +35,14 @@
 
 namespace {
 
+// This will disable the tap to click while the user is typing on a physical keyboard
 const bool ENABLE_TOUCHPAD_PALM_REJECTION = input_flags::enable_touchpad_typing_palm_rejection();
 
+// In addition to v1, v2 will also cancel ongoing move gestures while typing and add delay in
+// re-enabling the tap to click.
+const bool ENABLE_TOUCHPAD_PALM_REJECTION_V2 =
+        input_flags::enable_v2_touchpad_typing_palm_rejection();
+
 uint32_t gesturesButtonToMotionEventButton(uint32_t gesturesButton) {
     switch (gesturesButton) {
         case GESTURES_BUTTON_LEFT:
@@ -75,6 +81,7 @@
     out << StringPrintf("Button state: 0x%08x\n", mButtonState);
     out << "Down time: " << mDownTime << "\n";
     out << "Current classification: " << ftl::enum_string(mCurrentClassification) << "\n";
+    out << "Enable Tap Timestamp: " << mWhenToEnableTapToClick << "\n";
     return out.str();
 }
 
@@ -109,8 +116,6 @@
 void GestureConverter::populateMotionRanges(InputDeviceInfo& info) const {
     info.addMotionRange(AMOTION_EVENT_AXIS_PRESSURE, SOURCE, 0.0f, 1.0f, 0, 0, 0);
 
-    // TODO(b/259547750): set this using the raw axis ranges from the touchpad when pointer capture
-    // is enabled.
     if (!mBoundsInLogicalDisplay.isEmpty()) {
         info.addMotionRange(AMOTION_EVENT_AXIS_X, SOURCE, mBoundsInLogicalDisplay.left,
                             mBoundsInLogicalDisplay.right, 0, 0, 0);
@@ -131,6 +136,7 @@
 }
 
 std::list<NotifyArgs> GestureConverter::handleGesture(nsecs_t when, nsecs_t readTime,
+                                                      nsecs_t gestureStartTime,
                                                       const Gesture& gesture) {
     if (!mDisplayId) {
         // Ignore gestures when there is no target display configured.
@@ -139,13 +145,13 @@
 
     switch (gesture.type) {
         case kGestureTypeMove:
-            return {handleMove(when, readTime, gesture)};
+            return handleMove(when, readTime, gestureStartTime, gesture);
         case kGestureTypeButtonsChange:
             return handleButtonsChange(when, readTime, gesture);
         case kGestureTypeScroll:
             return handleScroll(when, readTime, gesture);
         case kGestureTypeFling:
-            return handleFling(when, readTime, gesture);
+            return handleFling(when, readTime, gestureStartTime, gesture);
         case kGestureTypeSwipe:
             return handleMultiFingerSwipe(when, readTime, 3, gesture.details.swipe.dx,
                                           gesture.details.swipe.dy);
@@ -162,18 +168,41 @@
     }
 }
 
-NotifyMotionArgs GestureConverter::handleMove(nsecs_t when, nsecs_t readTime,
-                                              const Gesture& gesture) {
+std::list<NotifyArgs> GestureConverter::handleMove(nsecs_t when, nsecs_t readTime,
+                                                   nsecs_t gestureStartTime,
+                                                   const Gesture& gesture) {
     float deltaX = gesture.details.move.dx;
     float deltaY = gesture.details.move.dy;
-    if (ENABLE_TOUCHPAD_PALM_REJECTION && (std::abs(deltaX) > 0 || std::abs(deltaY) > 0)) {
-        enableTapToClick();
+    if (ENABLE_TOUCHPAD_PALM_REJECTION_V2) {
+        bool wasHoverCancelled = mIsHoverCancelled;
+        // Gesture will be cancelled if it started before the user started typing and
+        // there is a active IME connection.
+        mIsHoverCancelled = gestureStartTime <= mReaderContext.getLastKeyDownTimestamp() &&
+                mReaderContext.getPolicy()->isInputMethodConnectionActive();
+
+        if (!wasHoverCancelled && mIsHoverCancelled) {
+            // This is the first event of the cancelled gesture, we won't return because we need to
+            // generate a HOVER_EXIT event
+            mPointerController->fade(PointerControllerInterface::Transition::GRADUAL);
+        } else if (mIsHoverCancelled) {
+            return {};
+        }
     }
+
     rotateDelta(mOrientation, &deltaX, &deltaY);
 
-    mPointerController->setPresentation(PointerControllerInterface::Presentation::POINTER);
-    mPointerController->move(deltaX, deltaY);
-    mPointerController->unfade(PointerControllerInterface::Transition::IMMEDIATE);
+    // Update the cursor, and enable tap to click if the gesture is not cancelled
+    if (!mIsHoverCancelled) {
+        // handleFling calls hoverMove with zero delta on FLING_TAP_DOWN. Don't enable tap to click
+        // for this case as subsequent handleButtonsChange may choose to ignore this tap.
+        if ((ENABLE_TOUCHPAD_PALM_REJECTION || ENABLE_TOUCHPAD_PALM_REJECTION_V2) &&
+            (std::abs(deltaX) > 0 || std::abs(deltaY) > 0)) {
+            enableTapToClick(when);
+        }
+        mPointerController->setPresentation(PointerControllerInterface::Presentation::POINTER);
+        mPointerController->move(deltaX, deltaY);
+        mPointerController->unfade(PointerControllerInterface::Transition::IMMEDIATE);
+    }
 
     const auto [xCursorPosition, yCursorPosition] =
             mEnablePointerChoreographer ? FloatPoint{0, 0} : mPointerController->getPosition();
@@ -187,10 +216,12 @@
     const bool down = isPointerDown(mButtonState);
     coords.setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, down ? 1.0f : 0.0f);
 
-    const int32_t action = down ? AMOTION_EVENT_ACTION_MOVE : AMOTION_EVENT_ACTION_HOVER_MOVE;
-    return makeMotionArgs(when, readTime, action, /* actionButton= */ 0, mButtonState,
-                          /* pointerCount= */ 1, mFingerProps.data(), &coords, xCursorPosition,
-                          yCursorPosition);
+    const int32_t action = mIsHoverCancelled
+            ? AMOTION_EVENT_ACTION_HOVER_EXIT
+            : (down ? AMOTION_EVENT_ACTION_MOVE : AMOTION_EVENT_ACTION_HOVER_MOVE);
+    return {makeMotionArgs(when, readTime, action, /* actionButton= */ 0, mButtonState,
+                           /* pointerCount= */ 1, mFingerProps.data(), &coords, xCursorPosition,
+                           yCursorPosition)};
 }
 
 std::list<NotifyArgs> GestureConverter::handleButtonsChange(nsecs_t when, nsecs_t readTime,
@@ -210,8 +241,15 @@
     coords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0);
     coords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0);
 
-    if (ENABLE_TOUCHPAD_PALM_REJECTION && mReaderContext.isPreventingTouchpadTaps()) {
-        enableTapToClick();
+    // V2 palm rejection should override V1
+    if (ENABLE_TOUCHPAD_PALM_REJECTION_V2) {
+        enableTapToClick(when);
+        if (gesture.details.buttons.is_tap && when <= mWhenToEnableTapToClick) {
+            // return early to prevent this tap
+            return out;
+        }
+    } else if (ENABLE_TOUCHPAD_PALM_REJECTION && mReaderContext.isPreventingTouchpadTaps()) {
+        enableTapToClick(when);
         if (gesture.details.buttons.is_tap) {
             // return early to prevent this tap
             return out;
@@ -348,6 +386,7 @@
 }
 
 std::list<NotifyArgs> GestureConverter::handleFling(nsecs_t when, nsecs_t readTime,
+                                                    nsecs_t gestureStartTime,
                                                     const Gesture& gesture) {
     switch (gesture.details.fling.fling_state) {
         case GESTURES_FLING_START:
@@ -366,13 +405,10 @@
                 // magnitude, which will also result in the pointer icon being updated.
                 // TODO(b/282023644): Add a signal in libgestures for when a stable contact has been
                 //  initiated with a touchpad.
-                if (!mReaderContext.isPreventingTouchpadTaps()) {
-                    enableTapToClick();
-                }
-                return {handleMove(when, readTime,
-                                   Gesture(kGestureMove, gesture.start_time, gesture.end_time,
-                                           /*dx=*/0.f,
-                                           /*dy=*/0.f))};
+                return handleMove(when, readTime, gestureStartTime,
+                                  Gesture(kGestureMove, gesture.start_time, gesture.end_time,
+                                          /*dx=*/0.f,
+                                          /*dy=*/0.f));
             }
             break;
         default:
@@ -598,8 +634,11 @@
             /* videoFrames= */ {}};
 }
 
-void GestureConverter::enableTapToClick() {
-    mReaderContext.setPreventingTouchpadTaps(false);
+void GestureConverter::enableTapToClick(nsecs_t when) {
+    if (mReaderContext.isPreventingTouchpadTaps()) {
+        mWhenToEnableTapToClick = when + TAP_ENABLE_DELAY_NANOS.count();
+        mReaderContext.setPreventingTouchpadTaps(false);
+    }
 }
 
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/gestures/GestureConverter.h b/services/inputflinger/reader/mapper/gestures/GestureConverter.h
index 732a4b2..88e7b99 100644
--- a/services/inputflinger/reader/mapper/gestures/GestureConverter.h
+++ b/services/inputflinger/reader/mapper/gestures/GestureConverter.h
@@ -34,6 +34,13 @@
 
 namespace android {
 
+using std::chrono_literals::operator""ms;
+/**
+ * This duration is decided based on internal team testing, it may be updated after testing with
+ * larger groups
+ */
+constexpr std::chrono::nanoseconds TAP_ENABLE_DELAY_NANOS = 400ms;
+
 // Converts Gesture structs from the gestures library into NotifyArgs and the appropriate
 // PointerController calls.
 class GestureConverter {
@@ -53,17 +60,20 @@
     void populateMotionRanges(InputDeviceInfo& info) const;
 
     [[nodiscard]] std::list<NotifyArgs> handleGesture(nsecs_t when, nsecs_t readTime,
+                                                      nsecs_t gestureStartTime,
                                                       const Gesture& gesture);
 
 private:
-    [[nodiscard]] NotifyMotionArgs handleMove(nsecs_t when, nsecs_t readTime,
-                                              const Gesture& gesture);
+    [[nodiscard]] std::list<NotifyArgs> handleMove(nsecs_t when, nsecs_t readTime,
+                                                   nsecs_t gestureStartTime,
+                                                   const Gesture& gesture);
     [[nodiscard]] std::list<NotifyArgs> handleButtonsChange(nsecs_t when, nsecs_t readTime,
                                                             const Gesture& gesture);
     [[nodiscard]] std::list<NotifyArgs> releaseAllButtons(nsecs_t when, nsecs_t readTime);
     [[nodiscard]] std::list<NotifyArgs> handleScroll(nsecs_t when, nsecs_t readTime,
                                                      const Gesture& gesture);
     [[nodiscard]] std::list<NotifyArgs> handleFling(nsecs_t when, nsecs_t readTime,
+                                                    nsecs_t gestureStartTime,
                                                     const Gesture& gesture);
     [[nodiscard]] NotifyMotionArgs endScroll(nsecs_t when, nsecs_t readTime);
 
@@ -82,7 +92,9 @@
                                     const PointerCoords* pointerCoords, float xCursorPosition,
                                     float yCursorPosition);
 
-    void enableTapToClick();
+    void enableTapToClick(nsecs_t when);
+    bool mIsHoverCancelled{false};
+    nsecs_t mWhenToEnableTapToClick{0};
 
     const int32_t mDeviceId;
     InputReaderContext& mReaderContext;
diff --git a/services/inputflinger/tests/GestureConverter_test.cpp b/services/inputflinger/tests/GestureConverter_test.cpp
index d2b68dd..69772af 100644
--- a/services/inputflinger/tests/GestureConverter_test.cpp
+++ b/services/inputflinger/tests/GestureConverter_test.cpp
@@ -41,10 +41,14 @@
 
 const auto TOUCHPAD_PALM_REJECTION =
         ACONFIG_FLAG(input_flags, enable_touchpad_typing_palm_rejection);
+const auto TOUCHPAD_PALM_REJECTION_V2 =
+        ACONFIG_FLAG(input_flags, enable_v2_touchpad_typing_palm_rejection);
 
 } // namespace
 
 using testing::AllOf;
+using testing::ElementsAre;
+using testing::VariantWith;
 
 class GestureConverterTestBase : public testing::Test {
 protected:
@@ -107,14 +111,14 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
-                      WithCoords(POINTER_X - 5, POINTER_Y + 10), WithRelativeMotion(-5, 10),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                              WithCoords(POINTER_X - 5, POINTER_Y + 10), WithRelativeMotion(-5, 10),
+                              WithToolType(ToolType::FINGER), WithButtonState(0),
+                              WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     ASSERT_NO_FATAL_FAILURE(mFakePointerController->assertPosition(POINTER_X - 5, POINTER_Y + 10));
 }
@@ -126,14 +130,14 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
-                      WithCoords(POINTER_X + 10, POINTER_Y + 5), WithRelativeMotion(10, 5),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                              WithCoords(POINTER_X + 10, POINTER_Y + 5), WithRelativeMotion(10, 5),
+                              WithToolType(ToolType::FINGER), WithButtonState(0),
+                              WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     ASSERT_NO_FATAL_FAILURE(mFakePointerController->assertPosition(POINTER_X + 10, POINTER_Y + 5));
 }
@@ -147,67 +151,69 @@
     Gesture downGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                         /* down= */ GESTURES_BUTTON_LEFT | GESTURES_BUTTON_RIGHT,
                         /* up= */ GESTURES_BUTTON_NONE, /* is_tap= */ false);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, downGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, downGesture);
     ASSERT_EQ(3u, args.size());
 
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
-                                      AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
-                                      AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
+                                                          AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
+                                                          AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Then release the left button
     Gesture leftUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /* down= */ GESTURES_BUTTON_NONE, /* up= */ GESTURES_BUTTON_LEFT,
                           /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, leftUpGesture);
-    ASSERT_EQ(1u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, leftUpGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                              WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                              WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY),
+                              WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Finally release the right button
     Gesture rightUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                            /* down= */ GESTURES_BUTTON_NONE, /* up= */ GESTURES_BUTTON_RIGHT,
                            /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, rightUpGesture);
-    ASSERT_EQ(3u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY), WithButtonState(0),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithButtonState(0),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithButtonState(0),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, rightUpGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(0), WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithButtonState(0), WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithButtonState(0), WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, DragWithButton) {
@@ -219,32 +225,33 @@
     Gesture downGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                         /* down= */ GESTURES_BUTTON_LEFT, /* up= */ GESTURES_BUTTON_NONE,
                         /* is_tap= */ false);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, downGesture);
-    ASSERT_EQ(2u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, downGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Move
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
-                      WithCoords(POINTER_X - 5, POINTER_Y + 10), WithRelativeMotion(-5, 10),
-                      WithToolType(ToolType::FINGER), WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                              WithCoords(POINTER_X - 5, POINTER_Y + 10), WithRelativeMotion(-5, 10),
+                              WithToolType(ToolType::FINGER),
+                              WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     ASSERT_NO_FATAL_FAILURE(mFakePointerController->assertPosition(POINTER_X - 5, POINTER_Y + 10));
 
@@ -252,24 +259,27 @@
     Gesture upGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                       /* down= */ GESTURES_BUTTON_NONE, /* up= */ GESTURES_BUTTON_LEFT,
                       /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, upGesture);
-    ASSERT_EQ(3u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
-                      WithCoords(POINTER_X - 5, POINTER_Y + 10), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithButtonState(0),
-                      WithCoords(POINTER_X - 5, POINTER_Y + 10), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithButtonState(0),
-                      WithCoords(POINTER_X - 5, POINTER_Y + 10), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, upGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0),
+                                          WithCoords(POINTER_X - 5, POINTER_Y + 10),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithButtonState(0),
+                                          WithCoords(POINTER_X - 5, POINTER_Y + 10),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithButtonState(0),
+                                          WithCoords(POINTER_X - 5, POINTER_Y + 10),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, Scroll) {
@@ -279,50 +289,52 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    std::list<NotifyArgs> args = converter.handleGesture(downTime, READ_TIME, startGesture);
-    ASSERT_EQ(2u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(POINTER_X, POINTER_Y),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDownTime(downTime),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
-                      WithCoords(POINTER_X, POINTER_Y - 10),
-                      WithGestureScrollDistance(0, 10, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(downTime, READ_TIME, ARBITRARY_TIME, startGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithGestureScrollDistance(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::TWO_FINGER_SWIPE),
+                                          WithToolType(ToolType::FINGER), WithDownTime(downTime),
+                                          WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithCoords(POINTER_X, POINTER_Y - 10),
+                                          WithGestureScrollDistance(0, 10, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::TWO_FINGER_SWIPE),
+                                          WithToolType(ToolType::FINGER),
+                                          WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture continueGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
-                      WithCoords(POINTER_X, POINTER_Y - 15),
-                      WithGestureScrollDistance(0, 5, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                              WithCoords(POINTER_X, POINTER_Y - 15),
+                              WithGestureScrollDistance(0, 5, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 1, 1,
                          GESTURES_FLING_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
-                      WithCoords(POINTER_X, POINTER_Y - 15),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                              WithCoords(POINTER_X, POINTER_Y - 15),
+                              WithGestureScrollDistance(0, 0, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, Scroll_Rotated) {
@@ -333,43 +345,47 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    std::list<NotifyArgs> args = converter.handleGesture(downTime, READ_TIME, startGesture);
-    ASSERT_EQ(2u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(POINTER_X, POINTER_Y),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDownTime(downTime),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
-                      WithCoords(POINTER_X - 10, POINTER_Y),
-                      WithGestureScrollDistance(0, 10, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(downTime, READ_TIME, ARBITRARY_TIME, startGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithGestureScrollDistance(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::TWO_FINGER_SWIPE),
+                                          WithToolType(ToolType::FINGER), WithDownTime(downTime),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithCoords(POINTER_X - 10, POINTER_Y),
+                                          WithGestureScrollDistance(0, 10, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::TWO_FINGER_SWIPE),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture continueGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
-                      WithCoords(POINTER_X - 15, POINTER_Y),
-                      WithGestureScrollDistance(0, 5, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                              WithCoords(POINTER_X - 15, POINTER_Y),
+                              WithGestureScrollDistance(0, 5, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 1, 1,
                          GESTURES_FLING_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
-                      WithCoords(POINTER_X - 15, POINTER_Y),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                              WithCoords(POINTER_X - 15, POINTER_Y),
+                              WithGestureScrollDistance(0, 0, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, Scroll_ClearsClassificationAfterGesture) {
@@ -378,21 +394,22 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture continueGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 1, 1,
                          GESTURES_FLING_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionClassification(MotionClassification::NONE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionClassification(MotionClassification::NONE),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, Scroll_ClearsScrollDistanceAfterGesture) {
@@ -401,20 +418,21 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture continueGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 1, 1,
                          GESTURES_FLING_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
     // Move gestures don't use the fake finger array, so to test that gesture axes are cleared we
     // need to use another gesture type, like pinch.
     Gesture pinchGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, pinchGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, pinchGesture);
     ASSERT_FALSE(args.empty());
     EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()), WithGestureScrollDistance(0, 0, EPSILON));
 }
@@ -426,17 +444,19 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/0,
                          /*dy=*/0);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/-5,
                         /*dy=*/10);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
     ASSERT_EQ(1u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionClassification(MotionClassification::NONE));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionClassification(MotionClassification::NONE))));
 }
 
 TEST_F(GestureConverterTest, ThreeFingerSwipe_ClearsGestureAxesAfterGesture) {
@@ -446,16 +466,17 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/5,
                          /*dy=*/5);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
 
     // Move gestures don't use the fake finger array, so to test that gesture axes are cleared we
     // need to use another gesture type, like pinch.
     Gesture pinchGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, pinchGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, pinchGesture);
     ASSERT_FALSE(args.empty());
     EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
                 AllOf(WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(0)));
@@ -472,7 +493,8 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dx= */ 0,
                          /* dy= */ 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
     ASSERT_EQ(4u, args.size());
 
     // Three fake fingers should be created. We don't actually care where they are, so long as they
@@ -523,7 +545,7 @@
 
     Gesture continueGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* dx= */ 0, /* dy= */ 5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
     ASSERT_EQ(1u, args.size());
     arg = std::get<NotifyMotionArgs>(args.front());
     ASSERT_THAT(arg,
@@ -540,30 +562,36 @@
     EXPECT_EQ(arg.pointerCoords[2].getY(), finger2Start.getY() - 15);
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
-    ASSERT_EQ(3u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(3),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(3u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(3),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(2u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithGestureOffset(0, 0, EPSILON),
-                      WithGestureSwipeFingerCount(3),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(1u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(3),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(3u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(3),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(3),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, ThreeFingerSwipe_Rotated) {
@@ -574,7 +602,8 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dx= */ 0,
                          /* dy= */ 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
     ASSERT_EQ(4u, args.size());
 
     // Three fake fingers should be created. We don't actually care where they are, so long as they
@@ -616,7 +645,7 @@
 
     Gesture continueGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* dx= */ 0, /* dy= */ 5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
     ASSERT_EQ(1u, args.size());
     arg = std::get<NotifyMotionArgs>(args.front());
     ASSERT_THAT(arg,
@@ -631,23 +660,24 @@
     EXPECT_EQ(arg.pointerCoords[2].getY(), finger2Start.getY());
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
-    ASSERT_EQ(3u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithPointerCount(3u),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithPointerCount(2u),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithGestureOffset(0, 0, EPSILON),
-                      WithPointerCount(1u), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON), WithPointerCount(3u),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON), WithPointerCount(2u),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithGestureOffset(0, 0, EPSILON), WithPointerCount(1u),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, FourFingerSwipe_Horizontal) {
@@ -657,7 +687,8 @@
 
     Gesture startGesture(kGestureFourFingerSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                          /* dx= */ 10, /* dy= */ 0);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
     ASSERT_EQ(5u, args.size());
 
     // Four fake fingers should be created. We don't actually care where they are, so long as they
@@ -720,7 +751,7 @@
 
     Gesture continueGesture(kGestureFourFingerSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* dx= */ 5, /* dy= */ 0);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
     ASSERT_EQ(1u, args.size());
     arg = std::get<NotifyMotionArgs>(args.front());
     ASSERT_THAT(arg,
@@ -739,38 +770,46 @@
     EXPECT_EQ(arg.pointerCoords[3].getY(), finger3Start.getY());
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
-    ASSERT_EQ(4u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       3 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(4),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(4u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(4),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(3u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(4),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(2u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithGestureOffset(0, 0, EPSILON),
-                      WithGestureSwipeFingerCount(4),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(1u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  3 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(4),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(4u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(4),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(3u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(4),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(4),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, Pinch_Inwards) {
@@ -780,51 +819,57 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dz= */ 1,
                          GESTURES_ZOOM_START);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON),
-                      WithCoords(POINTER_X - 100, POINTER_Y), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON),
-                      WithPointerCoords(1, POINTER_X + 100, POINTER_Y), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithCoords(POINTER_X - 100, POINTER_Y),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCoords(1, POINTER_X + 100, POINTER_Y),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture updateGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /* dz= */ 0.8, GESTURES_ZOOM_UPDATE);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, updateGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(0.8f, EPSILON),
-                      WithPointerCoords(0, POINTER_X - 80, POINTER_Y),
-                      WithPointerCoords(1, POINTER_X + 80, POINTER_Y), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, updateGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                              WithMotionClassification(MotionClassification::PINCH),
+                              WithGesturePinchScaleFactor(0.8f, EPSILON),
+                              WithPointerCoords(0, POINTER_X - 80, POINTER_Y),
+                              WithPointerCoords(1, POINTER_X + 80, POINTER_Y), WithPointerCount(2u),
+                              WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture endGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dz= */ 1,
                        GESTURES_ZOOM_END);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, endGesture);
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, endGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, Pinch_Outwards) {
@@ -834,51 +879,57 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dz= */ 1,
                          GESTURES_ZOOM_START);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON),
-                      WithCoords(POINTER_X - 100, POINTER_Y), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON),
-                      WithPointerCoords(1, POINTER_X + 100, POINTER_Y), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithCoords(POINTER_X - 100, POINTER_Y),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCoords(1, POINTER_X + 100, POINTER_Y),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture updateGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /* dz= */ 1.2, GESTURES_ZOOM_UPDATE);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, updateGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.2f, EPSILON),
-                      WithPointerCoords(0, POINTER_X - 120, POINTER_Y),
-                      WithPointerCoords(1, POINTER_X + 120, POINTER_Y), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, updateGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                              WithMotionClassification(MotionClassification::PINCH),
+                              WithGesturePinchScaleFactor(1.2f, EPSILON),
+                              WithPointerCoords(0, POINTER_X - 120, POINTER_Y),
+                              WithPointerCoords(1, POINTER_X + 120, POINTER_Y),
+                              WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture endGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dz= */ 1,
                        GESTURES_ZOOM_END);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, endGesture);
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, endGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, Pinch_ClearsClassificationAfterGesture) {
@@ -888,21 +939,22 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture updateGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /*dz=*/1.2, GESTURES_ZOOM_UPDATE);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, updateGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, updateGesture);
 
     Gesture endGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                        GESTURES_ZOOM_END);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, endGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, endGesture);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionClassification(MotionClassification::NONE));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionClassification(MotionClassification::NONE))));
 }
 
 TEST_F(GestureConverterTest, Pinch_ClearsScaleFactorAfterGesture) {
@@ -912,21 +964,22 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture updateGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /*dz=*/1.2, GESTURES_ZOOM_UPDATE);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, updateGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, updateGesture);
 
     Gesture endGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                        GESTURES_ZOOM_END);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, endGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, endGesture);
 
     // Move gestures don't use the fake finger array, so to test that gesture axes are cleared we
     // need to use another gesture type, like scroll.
     Gesture scrollGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/1,
                           /*dy=*/0);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, scrollGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, scrollGesture);
     ASSERT_FALSE(args.empty());
     EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()), WithGesturePinchScaleFactor(0, EPSILON));
 }
@@ -939,28 +992,28 @@
     Gesture downGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                         /*down=*/GESTURES_BUTTON_LEFT | GESTURES_BUTTON_RIGHT,
                         /*up=*/GESTURES_BUTTON_NONE, /*is_tap=*/false);
-    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, downGesture);
+    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, downGesture);
 
     std::list<NotifyArgs> args = converter.reset(ARBITRARY_TIME);
-    ASSERT_EQ(3u, args.size());
-
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY), WithButtonState(0),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithButtonState(0),
-                      WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(0), WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithButtonState(0), WithCoords(POINTER_X, POINTER_Y),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, ResetDuringScroll) {
@@ -969,18 +1022,18 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     std::list<NotifyArgs> args = converter.reset(ARBITRARY_TIME);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
-                      WithCoords(POINTER_X, POINTER_Y - 10),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                              WithCoords(POINTER_X, POINTER_Y - 10),
+                              WithGestureScrollDistance(0, 0, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, ResetDuringThreeFingerSwipe) {
@@ -990,31 +1043,35 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/0,
                          /*dy=*/10);
-    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     std::list<NotifyArgs> args = converter.reset(ARBITRARY_TIME);
-    ASSERT_EQ(3u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(3u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(2u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithGestureOffset(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(1u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(3u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, ResetDuringPinch) {
@@ -1024,22 +1081,24 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     std::list<NotifyArgs> args = converter.reset(ARBITRARY_TIME);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, FlingTapDown) {
@@ -1049,7 +1108,8 @@
 
     Gesture tapDownGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                            /*vx=*/0.f, /*vy=*/0.f, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, tapDownGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, tapDownGesture);
 
     ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
@@ -1069,52 +1129,57 @@
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
                          /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                              WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                              WithToolType(ToolType::FINGER), WithButtonState(0),
+                              WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture tapGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                        /* down= */ GESTURES_BUTTON_LEFT,
                        /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, tapGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, tapGesture);
 
-    ASSERT_EQ(5u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(POINTER_X, POINTER_Y),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
-                      WithToolType(ToolType::FINGER), WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(POINTER_X, POINTER_Y),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(0), WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0), WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER),
+                                          WithButtonState(0), WithPressure(0.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTest, Click) {
@@ -1125,62 +1190,71 @@
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
                          /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                              WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                              WithToolType(ToolType::FINGER), WithButtonState(0),
+                              WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture buttonDownGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                               /* down= */ GESTURES_BUTTON_LEFT,
                               /* up= */ GESTURES_BUTTON_NONE, /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonDownGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, buttonDownGesture);
 
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(POINTER_X, POINTER_Y),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
-                      WithToolType(ToolType::FINGER), WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture buttonUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* down= */ GESTURES_BUTTON_NONE,
                             /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonUpGesture);
-
-    ASSERT_EQ(3u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(POINTER_X, POINTER_Y),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(0), WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, buttonUpGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0), WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER),
+                                          WithButtonState(0), WithPressure(0.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F_WITH_FLAGS(GestureConverterTest, TapWithTapToClickDisabled,
-                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION)) {
+                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION),
+                  REQUIRES_FLAGS_DISABLED(TOUCHPAD_PALM_REJECTION_V2)) {
+    nsecs_t currentTime = ARBITRARY_GESTURE_TIME;
+
     // Tap should be ignored when disabled
     mReader->getContext()->setPreventingTouchpadTaps(true);
 
@@ -1188,9 +1262,45 @@
     GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
-    Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
+    Gesture flingGesture(kGestureFling, currentTime, currentTime, /* vx= */ 0,
                          /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(currentTime, currentTime, currentTime, flingGesture);
+
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                              WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                              WithToolType(ToolType::FINGER), WithButtonState(0),
+                              WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)))));
+
+    Gesture tapGesture(kGestureButtonsChange, currentTime, currentTime,
+                       /* down= */ GESTURES_BUTTON_LEFT,
+                       /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, tapGesture);
+
+    // no events should be generated
+    ASSERT_EQ(0u, args.size());
+
+    // Future taps should be re-enabled
+    ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
+}
+
+TEST_F_WITH_FLAGS(GestureConverterTest, TapWithTapToClickDisabledWithDelay,
+                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION_V2)) {
+    nsecs_t currentTime = ARBITRARY_GESTURE_TIME;
+
+    // Tap should be ignored when disabled
+    mReader->getContext()->setPreventingTouchpadTaps(true);
+
+    InputDeviceContext deviceContext(*mDevice, EVENTHUB_ID);
+    GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
+    converter.setDisplayId(ADISPLAY_ID_DEFAULT);
+
+    Gesture flingGesture(kGestureFling, currentTime, currentTime, /* vx= */ 0,
+                         /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(currentTime, currentTime, currentTime, flingGesture);
 
     ASSERT_EQ(1u, args.size());
     ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
@@ -1198,18 +1308,73 @@
                       WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
                       WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
                       WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
 
-    Gesture tapGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
+    Gesture tapGesture(kGestureButtonsChange, currentTime, currentTime,
                        /* down= */ GESTURES_BUTTON_LEFT,
                        /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, tapGesture);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, tapGesture);
 
     // no events should be generated
     ASSERT_EQ(0u, args.size());
 
     // Future taps should be re-enabled
     ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
+
+    // taps before the threshold should still be ignored
+    currentTime += TAP_ENABLE_DELAY_NANOS.count();
+    flingGesture = Gesture(kGestureFling, currentTime, currentTime, /* vx= */ 0,
+                           /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, flingGesture);
+
+    ASSERT_EQ(1u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithRelativeMotion(0, 0)));
+
+    tapGesture = Gesture(kGestureButtonsChange, currentTime, currentTime,
+                         /* down= */ GESTURES_BUTTON_LEFT,
+                         /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, tapGesture);
+
+    // no events should be generated
+    ASSERT_EQ(0u, args.size());
+
+    // taps after the threshold should be recognised
+    currentTime += 1;
+    flingGesture = Gesture(kGestureFling, currentTime, currentTime, /* vx= */ 0,
+                           /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, flingGesture);
+
+    ASSERT_EQ(1u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithRelativeMotion(0, 0)));
+
+    tapGesture = Gesture(kGestureButtonsChange, currentTime, currentTime,
+                         /* down= */ GESTURES_BUTTON_LEFT,
+                         /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, tapGesture);
+
+    ASSERT_EQ(5u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithRelativeMotion(0.f, 0.f),
+                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(1),
+                      WithRelativeMotion(0.f, 0.f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
+                      WithRelativeMotion(0.f, 0.f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithRelativeMotion(0.f, 0.f),
+                      WithButtonState(0)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithRelativeMotion(0, 0),
+                      WithButtonState(0)));
 }
 
 TEST_F_WITH_FLAGS(GestureConverterTest, ClickWithTapToClickDisabled,
@@ -1223,58 +1388,64 @@
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
                          /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                              WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                              WithToolType(ToolType::FINGER), WithButtonState(0),
+                              WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture buttonDownGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                               /* down= */ GESTURES_BUTTON_LEFT,
                               /* up= */ GESTURES_BUTTON_NONE, /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonDownGesture);
-    ASSERT_EQ(2u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(POINTER_X, POINTER_Y),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
-                      WithToolType(ToolType::FINGER), WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, buttonDownGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture buttonUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* down= */ GESTURES_BUTTON_NONE,
                             /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonUpGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, buttonUpGesture);
 
-    ASSERT_EQ(3u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(POINTER_X, POINTER_Y),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(0), WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
-                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0), WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithCoords(POINTER_X, POINTER_Y),
+                                          WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER),
+                                          WithButtonState(0), WithPressure(0.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Future taps should be re-enabled
     ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
@@ -1290,14 +1461,14 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
-                      WithCoords(POINTER_X - 5, POINTER_Y + 10), WithRelativeMotion(-5, 10),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                              WithCoords(POINTER_X - 5, POINTER_Y + 10), WithRelativeMotion(-5, 10),
+                              WithToolType(ToolType::FINGER), WithButtonState(0),
+                              WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     ASSERT_NO_FATAL_FAILURE(mFakePointerController->assertPosition(POINTER_X - 5, POINTER_Y + 10));
 
@@ -1305,6 +1476,45 @@
     ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
 }
 
+TEST_F_WITH_FLAGS(GestureConverterTest, KeypressCancelsHoverMove,
+                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION_V2)) {
+    const nsecs_t gestureStartTime = 1000;
+    InputDeviceContext deviceContext(*mDevice, EVENTHUB_ID);
+    GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
+    converter.setDisplayId(ADISPLAY_ID_DEFAULT);
+
+    // Start a move gesture at gestureStartTime
+    Gesture moveGesture(kGestureMove, gestureStartTime, gestureStartTime, -5, 10);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(gestureStartTime, READ_TIME, gestureStartTime, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))));
+
+    // Key presses with IME connection should cancel ongoing move gesture
+    nsecs_t currentTime = gestureStartTime + 100;
+    mFakePolicy->setIsInputMethodConnectionActive(true);
+    mReader->getContext()->setLastKeyDownTimestamp(currentTime);
+    moveGesture = Gesture(kGestureMove, currentTime, currentTime, -5, 10);
+    args = converter.handleGesture(currentTime, READ_TIME, gestureStartTime, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionAction(AMOTION_EVENT_ACTION_HOVER_EXIT))));
+
+    // any updates in existing move gesture should be ignored
+    moveGesture = Gesture(kGestureMove, currentTime, currentTime, -5, 10);
+    args = converter.handleGesture(currentTime, READ_TIME, gestureStartTime, moveGesture);
+    ASSERT_EQ(0u, args.size());
+
+    // New gesture should not be affected
+    currentTime += 100;
+    moveGesture = Gesture(kGestureMove, currentTime, currentTime, -5, 10);
+    args = converter.handleGesture(currentTime, READ_TIME, currentTime, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))));
+}
+
 // TODO(b/311416205): De-duplicate the test cases after the refactoring is complete and the flagging
 //   logic can be removed.
 class GestureConverterTestWithChoreographer : public GestureConverterTestBase {
@@ -1321,13 +1531,14 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(-5, 10), WithToolType(ToolType::FINGER),
-                      WithButtonState(0), WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
+                              WithRelativeMotion(-5, 10), WithToolType(ToolType::FINGER),
+                              WithButtonState(0), WithPressure(0.0f),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Move_Rotated) {
@@ -1337,13 +1548,14 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(10, 5), WithToolType(ToolType::FINGER), WithButtonState(0),
-                      WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
+                              WithRelativeMotion(10, 5), WithToolType(ToolType::FINGER),
+                              WithButtonState(0), WithPressure(0.0f),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, ButtonsChange) {
@@ -1355,65 +1567,64 @@
     Gesture downGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                         /* down= */ GESTURES_BUTTON_LEFT | GESTURES_BUTTON_RIGHT,
                         /* up= */ GESTURES_BUTTON_NONE, /* is_tap= */ false);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, downGesture);
-    ASSERT_EQ(3u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
-                                      AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithCoords(0, 0),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
-                                      AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, downGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
+                                                          AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithCoords(0, 0), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(0, 0), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
+                                                          AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithCoords(0, 0), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Then release the left button
     Gesture leftUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /* down= */ GESTURES_BUTTON_NONE, /* up= */ GESTURES_BUTTON_LEFT,
                           /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, leftUpGesture);
-    ASSERT_EQ(1u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY), WithCoords(0, 0),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, leftUpGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                              WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                              WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY), WithCoords(0, 0),
+                              WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Finally release the right button
     Gesture rightUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                            /* down= */ GESTURES_BUTTON_NONE, /* up= */ GESTURES_BUTTON_RIGHT,
                            /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, rightUpGesture);
-    ASSERT_EQ(3u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY), WithButtonState(0),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithButtonState(0),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithButtonState(0),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, rightUpGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, DragWithButton) {
@@ -1425,53 +1636,53 @@
     Gesture downGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                         /* down= */ GESTURES_BUTTON_LEFT, /* up= */ GESTURES_BUTTON_NONE,
                         /* is_tap= */ false);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, downGesture);
-    ASSERT_EQ(2u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithCoords(0, 0),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithCoords(0, 0),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, downGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(0, 0), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(0, 0), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Move
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(-5, 10), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(0, 0),
+                              WithRelativeMotion(-5, 10), WithToolType(ToolType::FINGER),
+                              WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Release the button
     Gesture upGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                       /* down= */ GESTURES_BUTTON_NONE, /* up= */ GESTURES_BUTTON_LEFT,
                       /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, upGesture);
-    ASSERT_EQ(3u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithButtonState(0),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithButtonState(0),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, upGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Scroll) {
@@ -1481,47 +1692,50 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    std::list<NotifyArgs> args = converter.handleGesture(downTime, READ_TIME, startGesture);
-    ASSERT_EQ(2u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(0, 0),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDownTime(downTime),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(0, -10),
-                      WithGestureScrollDistance(0, 10, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(downTime, READ_TIME, ARBITRARY_TIME, startGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(0, 0),
+                                          WithGestureScrollDistance(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::TWO_FINGER_SWIPE),
+                                          WithToolType(ToolType::FINGER), WithDownTime(downTime),
+                                          WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithCoords(0, -10),
+                                          WithGestureScrollDistance(0, 10, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::TWO_FINGER_SWIPE),
+                                          WithToolType(ToolType::FINGER),
+                                          WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture continueGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(0, -15),
-                      WithGestureScrollDistance(0, 5, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(0, -15),
+                              WithGestureScrollDistance(0, 5, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 1, 1,
                          GESTURES_FLING_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(0, 0 - 15),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(0, 0 - 15),
+                              WithGestureScrollDistance(0, 0, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Scroll_Rotated) {
@@ -1532,40 +1746,46 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    std::list<NotifyArgs> args = converter.handleGesture(downTime, READ_TIME, startGesture);
-    ASSERT_EQ(2u, args.size());
-
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(0, 0),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDownTime(downTime),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(-10, 0),
-                      WithGestureScrollDistance(0, 10, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(downTime, READ_TIME, ARBITRARY_TIME, startGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(0, 0),
+                                          WithGestureScrollDistance(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::TWO_FINGER_SWIPE),
+                                          WithToolType(ToolType::FINGER), WithDownTime(downTime),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithCoords(-10, 0),
+                                          WithGestureScrollDistance(0, 10, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::TWO_FINGER_SWIPE),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture continueGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(-15, 0),
-                      WithGestureScrollDistance(0, 5, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(-15, 0),
+                              WithGestureScrollDistance(0, 5, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 1, 1,
                          GESTURES_FLING_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(-15, 0),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(-15, 0),
+                              WithGestureScrollDistance(0, 0, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Scroll_ClearsClassificationAfterGesture) {
@@ -1574,21 +1794,22 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture continueGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 1, 1,
                          GESTURES_FLING_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionClassification(MotionClassification::NONE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionClassification(MotionClassification::NONE),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Scroll_ClearsScrollDistanceAfterGesture) {
@@ -1597,20 +1818,21 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture continueGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 1, 1,
                          GESTURES_FLING_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
     // Move gestures don't use the fake finger array, so to test that gesture axes are cleared we
     // need to use another gesture type, like pinch.
     Gesture pinchGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, pinchGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, pinchGesture);
     ASSERT_FALSE(args.empty());
     EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()), WithGestureScrollDistance(0, 0, EPSILON));
 }
@@ -1622,17 +1844,18 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/0,
                          /*dy=*/0);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/-5,
                         /*dy=*/10);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionClassification(MotionClassification::NONE));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionClassification(MotionClassification::NONE))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, ThreeFingerSwipe_ClearsGestureAxesAfterGesture) {
@@ -1642,16 +1865,17 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/5,
                          /*dy=*/5);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
 
     // Move gestures don't use the fake finger array, so to test that gesture axes are cleared we
     // need to use another gesture type, like pinch.
     Gesture pinchGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, pinchGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, pinchGesture);
     ASSERT_FALSE(args.empty());
     EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
                 AllOf(WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(0)));
@@ -1668,7 +1892,8 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dx= */ 0,
                          /* dy= */ 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
     ASSERT_EQ(4u, args.size());
 
     // Three fake fingers should be created. We don't actually care where they are, so long as they
@@ -1719,7 +1944,7 @@
 
     Gesture continueGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* dx= */ 0, /* dy= */ 5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
     ASSERT_EQ(1u, args.size());
     arg = std::get<NotifyMotionArgs>(args.front());
     ASSERT_THAT(arg,
@@ -1736,30 +1961,36 @@
     EXPECT_EQ(arg.pointerCoords[2].getY(), finger2Start.getY() - 15);
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
-    ASSERT_EQ(3u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(3),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(3u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(3),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(2u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithGestureOffset(0, 0, EPSILON),
-                      WithGestureSwipeFingerCount(3),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(1u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(3),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(3u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(3),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(3),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, ThreeFingerSwipe_Rotated) {
@@ -1770,7 +2001,8 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dx= */ 0,
                          /* dy= */ 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
     ASSERT_EQ(4u, args.size());
 
     // Three fake fingers should be created. We don't actually care where they are, so long as they
@@ -1812,7 +2044,7 @@
 
     Gesture continueGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* dx= */ 0, /* dy= */ 5);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
     ASSERT_EQ(1u, args.size());
     arg = std::get<NotifyMotionArgs>(args.front());
     ASSERT_THAT(arg,
@@ -1827,23 +2059,24 @@
     EXPECT_EQ(arg.pointerCoords[2].getY(), finger2Start.getY());
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
-    ASSERT_EQ(3u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithPointerCount(3u),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithPointerCount(2u),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithGestureOffset(0, 0, EPSILON),
-                      WithPointerCount(1u), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON), WithPointerCount(3u),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON), WithPointerCount(2u),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithGestureOffset(0, 0, EPSILON), WithPointerCount(1u),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, FourFingerSwipe_Horizontal) {
@@ -1853,7 +2086,8 @@
 
     Gesture startGesture(kGestureFourFingerSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                          /* dx= */ 10, /* dy= */ 0);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
     ASSERT_EQ(5u, args.size());
 
     // Four fake fingers should be created. We don't actually care where they are, so long as they
@@ -1916,7 +2150,7 @@
 
     Gesture continueGesture(kGestureFourFingerSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* dx= */ 5, /* dy= */ 0);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, continueGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, continueGesture);
     ASSERT_EQ(1u, args.size());
     arg = std::get<NotifyMotionArgs>(args.front());
     ASSERT_THAT(arg,
@@ -1935,38 +2169,46 @@
     EXPECT_EQ(arg.pointerCoords[3].getY(), finger3Start.getY());
 
     Gesture liftGesture(kGestureSwipeLift, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, liftGesture);
-    ASSERT_EQ(4u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       3 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(4),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(4u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(4),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(3u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON), WithGestureSwipeFingerCount(4),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(2u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithGestureOffset(0, 0, EPSILON),
-                      WithGestureSwipeFingerCount(4),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(1u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, liftGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  3 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(4),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(4u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(4),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(3u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(4),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithGestureSwipeFingerCount(4),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Pinch_Inwards) {
@@ -1976,50 +2218,56 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dz= */ 1,
                          GESTURES_ZOOM_START);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithCoords(-100, 0),
-                      WithPointerCount(1u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCoords(1, 100, 0),
-                      WithPointerCount(2u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithCoords(-100, 0), WithPointerCount(1u),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCoords(1, 100, 0), WithPointerCount(2u),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture updateGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /* dz= */ 0.8, GESTURES_ZOOM_UPDATE);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, updateGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(0.8f, EPSILON), WithPointerCoords(0, -80, 0),
-                      WithPointerCoords(1, 80, 0), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, updateGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                              WithMotionClassification(MotionClassification::PINCH),
+                              WithGesturePinchScaleFactor(0.8f, EPSILON),
+                              WithPointerCoords(0, -80, 0), WithPointerCoords(1, 80, 0),
+                              WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture endGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dz= */ 1,
                        GESTURES_ZOOM_END);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, endGesture);
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, endGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Pinch_Outwards) {
@@ -2029,50 +2277,56 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dz= */ 1,
                          GESTURES_ZOOM_START);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithCoords(-100, 0),
-                      WithPointerCount(1u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCoords(1, 100, 0),
-                      WithPointerCount(2u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithCoords(-100, 0), WithPointerCount(1u),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCoords(1, 100, 0), WithPointerCount(2u),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture updateGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /* dz= */ 1.1, GESTURES_ZOOM_UPDATE);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, updateGesture);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.1f, EPSILON), WithPointerCoords(0, -110, 0),
-                      WithPointerCoords(1, 110, 0), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, updateGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                              WithMotionClassification(MotionClassification::PINCH),
+                              WithGesturePinchScaleFactor(1.1f, EPSILON),
+                              WithPointerCoords(0, -110, 0), WithPointerCoords(1, 110, 0),
+                              WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture endGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* dz= */ 1,
                        GESTURES_ZOOM_END);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, endGesture);
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, endGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Pinch_ClearsClassificationAfterGesture) {
@@ -2082,21 +2336,22 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture updateGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /*dz=*/1.2, GESTURES_ZOOM_UPDATE);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, updateGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, updateGesture);
 
     Gesture endGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                        GESTURES_ZOOM_END);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, endGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, endGesture);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionClassification(MotionClassification::NONE));
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionClassification(MotionClassification::NONE))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Pinch_ClearsScaleFactorAfterGesture) {
@@ -2106,21 +2361,22 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     Gesture updateGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                           /*dz=*/1.2, GESTURES_ZOOM_UPDATE);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, updateGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, updateGesture);
 
     Gesture endGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                        GESTURES_ZOOM_END);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, endGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, endGesture);
 
     // Move gestures don't use the fake finger array, so to test that gesture axes are cleared we
     // need to use another gesture type, like scroll.
     Gesture scrollGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/1,
                           /*dy=*/0);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, scrollGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, scrollGesture);
     ASSERT_FALSE(args.empty());
     EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()), WithGesturePinchScaleFactor(0, EPSILON));
 }
@@ -2133,27 +2389,27 @@
     Gesture downGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                         /*down=*/GESTURES_BUTTON_LEFT | GESTURES_BUTTON_RIGHT,
                         /*up=*/GESTURES_BUTTON_NONE, /*is_tap=*/false);
-    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, downGesture);
+    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, downGesture);
 
     std::list<NotifyArgs> args = converter.reset(ARBITRARY_TIME);
-    ASSERT_EQ(3u, args.size());
-
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY), WithCoords(0, 0),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY), WithButtonState(0),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithButtonState(0),
-                      WithCoords(0, 0), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithCoords(0, 0), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, ResetDuringScroll) {
@@ -2162,17 +2418,17 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture startGesture(kGestureScroll, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, 0, -10);
-    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     std::list<NotifyArgs> args = converter.reset(ARBITRARY_TIME);
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(0, -10),
-                      WithGestureScrollDistance(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
-                      WithToolType(ToolType::FINGER),
-                      WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(0, -10),
+                              WithGestureScrollDistance(0, 0, EPSILON),
+                              WithMotionClassification(MotionClassification::TWO_FINGER_SWIPE),
+                              WithToolType(ToolType::FINGER),
+                              WithFlags(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, ResetDuringThreeFingerSwipe) {
@@ -2182,31 +2438,35 @@
 
     Gesture startGesture(kGestureSwipe, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dx=*/0,
                          /*dy=*/10);
-    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     std::list<NotifyArgs> args = converter.reset(ARBITRARY_TIME);
-    ASSERT_EQ(3u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(3u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithGestureOffset(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(2u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithGestureOffset(0, 0, EPSILON),
-                      WithMotionClassification(MotionClassification::MULTI_FINGER_SWIPE),
-                      WithPointerCount(1u), WithToolType(ToolType::FINGER),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  2 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(3u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithGestureOffset(0, 0, EPSILON),
+                                          WithMotionClassification(
+                                                  MotionClassification::MULTI_FINGER_SWIPE),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, ResetDuringPinch) {
@@ -2216,22 +2476,24 @@
 
     Gesture startGesture(kGesturePinch, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /*dz=*/1,
                          GESTURES_ZOOM_START);
-    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, startGesture);
+    (void)converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, startGesture);
 
     std::list<NotifyArgs> args = converter.reset(ARBITRARY_TIME);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(2u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
-                      WithMotionClassification(MotionClassification::PINCH),
-                      WithGesturePinchScaleFactor(1.0f, EPSILON), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(2u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithMotionClassification(MotionClassification::PINCH),
+                                          WithGesturePinchScaleFactor(1.0f, EPSILON),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, FlingTapDown) {
@@ -2241,7 +2503,8 @@
 
     Gesture tapDownGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                            /*vx=*/0.f, /*vy=*/0.f, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, tapDownGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, tapDownGesture);
 
     ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
@@ -2257,50 +2520,54 @@
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
                          /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER), WithButtonState(0),
-                      WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
+                              WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER),
+                              WithButtonState(0), WithPressure(0.0f),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture tapGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                        /* down= */ GESTURES_BUTTON_LEFT,
                        /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, tapGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, tapGesture);
 
-    ASSERT_EQ(5u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(0, 0),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithCoords(0, 0),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
-                      WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(0, 0),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(0), WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER), WithButtonState(0),
-                      WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithCoords(0, 0), WithRelativeMotion(0, 0),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(0.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F(GestureConverterTestWithChoreographer, Click) {
@@ -2311,7 +2578,8 @@
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
                          /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
     ASSERT_EQ(1u, args.size());
     ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
@@ -2322,49 +2590,56 @@
     Gesture buttonDownGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                               /* down= */ GESTURES_BUTTON_LEFT,
                               /* up= */ GESTURES_BUTTON_NONE, /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonDownGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, buttonDownGesture);
 
-    ASSERT_EQ(2u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(0, 0),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithCoords(0, 0),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture buttonUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* down= */ GESTURES_BUTTON_NONE,
                             /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonUpGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, buttonUpGesture);
 
-    ASSERT_EQ(3u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
-                      WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(0, 0),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(0), WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER), WithButtonState(0),
-                      WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithCoords(0, 0), WithRelativeMotion(0, 0),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(0.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 }
 
 TEST_F_WITH_FLAGS(GestureConverterTestWithChoreographer, TapWithTapToClickDisabled,
-                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION)) {
+                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION),
+                  REQUIRES_FLAGS_DISABLED(TOUCHPAD_PALM_REJECTION_V2)) {
+    nsecs_t currentTime = ARBITRARY_GESTURE_TIME;
+
     // Tap should be ignored when disabled
     mReader->getContext()->setPreventingTouchpadTaps(true);
 
@@ -2372,21 +2647,22 @@
     GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
-    Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
+    Gesture flingGesture(kGestureFling, currentTime, currentTime, /* vx= */ 0,
                          /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(currentTime, currentTime, currentTime, flingGesture);
 
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER), WithButtonState(0),
-                      WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
+                              WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER),
+                              WithButtonState(0), WithPressure(0.0f),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
-    Gesture tapGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
+    Gesture tapGesture(kGestureButtonsChange, currentTime, currentTime,
                        /* down= */ GESTURES_BUTTON_LEFT,
                        /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, tapGesture);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, tapGesture);
 
     // no events should be generated
     ASSERT_EQ(0u, args.size());
@@ -2395,6 +2671,96 @@
     ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
 }
 
+TEST_F_WITH_FLAGS(GestureConverterTestWithChoreographer, TapWithTapToClickDisabledWithDelay,
+                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION_V2)) {
+    nsecs_t currentTime = ARBITRARY_GESTURE_TIME;
+
+    // Tap should be ignored when disabled
+    mReader->getContext()->setPreventingTouchpadTaps(true);
+
+    InputDeviceContext deviceContext(*mDevice, EVENTHUB_ID);
+    GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
+    converter.setDisplayId(ADISPLAY_ID_DEFAULT);
+
+    Gesture flingGesture(kGestureFling, currentTime, currentTime, /* vx= */ 0,
+                         /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(currentTime, currentTime, currentTime, flingGesture);
+
+    ASSERT_EQ(1u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
+                      WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER), WithButtonState(0),
+                      WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+
+    Gesture tapGesture(kGestureButtonsChange, currentTime, currentTime,
+                       /* down= */ GESTURES_BUTTON_LEFT,
+                       /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, tapGesture);
+
+    // no events should be generated
+    ASSERT_EQ(0u, args.size());
+
+    // Future taps should be re-enabled
+    ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
+
+    // taps before the threshold should still be ignored
+    currentTime += TAP_ENABLE_DELAY_NANOS.count();
+    flingGesture = Gesture(kGestureFling, currentTime, currentTime, /* vx= */ 0,
+                           /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, flingGesture);
+
+    ASSERT_EQ(1u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithRelativeMotion(0, 0)));
+
+    tapGesture = Gesture(kGestureButtonsChange, currentTime, currentTime,
+                         /* down= */ GESTURES_BUTTON_LEFT,
+                         /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, tapGesture);
+
+    // no events should be generated
+    ASSERT_EQ(0u, args.size());
+
+    // taps after the threshold should be recognised
+    currentTime += 1;
+    flingGesture = Gesture(kGestureFling, currentTime, currentTime, /* vx= */ 0,
+                           /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, flingGesture);
+
+    ASSERT_EQ(1u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithRelativeMotion(0, 0)));
+
+    tapGesture = Gesture(kGestureButtonsChange, currentTime, currentTime,
+                         /* down= */ GESTURES_BUTTON_LEFT,
+                         /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
+    args = converter.handleGesture(currentTime, currentTime, currentTime, tapGesture);
+
+    ASSERT_EQ(5u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithRelativeMotion(0.f, 0.f),
+                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(1),
+                      WithRelativeMotion(0.f, 0.f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
+                      WithRelativeMotion(0.f, 0.f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithRelativeMotion(0.f, 0.f),
+                      WithButtonState(0)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithRelativeMotion(0, 0),
+                      WithButtonState(0)));
+}
+
 TEST_F_WITH_FLAGS(GestureConverterTestWithChoreographer, ClickWithTapToClickDisabled,
                   REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION)) {
     // Click should still produce button press/release events
@@ -2406,56 +2772,62 @@
 
     Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
                          /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, flingGesture);
 
-    ASSERT_EQ(1u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER), WithButtonState(0),
-                      WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
+                              WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER),
+                              WithButtonState(0), WithPressure(0.0f),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture buttonDownGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                               /* down= */ GESTURES_BUTTON_LEFT,
                               /* up= */ GESTURES_BUTTON_NONE, /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonDownGesture);
-    ASSERT_EQ(2u, args.size());
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, buttonDownGesture);
 
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(0, 0),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithCoords(0, 0),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithPressure(1.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     Gesture buttonUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
                             /* down= */ GESTURES_BUTTON_NONE,
                             /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ false);
-    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonUpGesture);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, buttonUpGesture);
 
-    ASSERT_EQ(3u, args.size());
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
-                      WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
-                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(1.0f),
-                      WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(0, 0),
-                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
-                      WithButtonState(0), WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
-    args.pop_front();
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(0, 0), WithToolType(ToolType::FINGER), WithButtonState(0),
-                      WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0), WithCoords(0, 0),
+                                          WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(1.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP),
+                                          WithCoords(0, 0), WithRelativeMotion(0.f, 0.f),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                                          WithCoords(0, 0), WithRelativeMotion(0, 0),
+                                          WithToolType(ToolType::FINGER), WithButtonState(0),
+                                          WithPressure(0.0f),
+                                          WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Future taps should be re-enabled
     ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
@@ -2471,16 +2843,57 @@
     converter.setDisplayId(ADISPLAY_ID_DEFAULT);
 
     Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
-    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
-    ASSERT_EQ(1u, args.size());
+    std::list<NotifyArgs> args =
+            converter.handleGesture(ARBITRARY_TIME, READ_TIME, ARBITRARY_TIME, moveGesture);
 
-    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
-                      WithRelativeMotion(-5, 10), WithToolType(ToolType::FINGER),
-                      WithButtonState(0), WithPressure(0.0f), WithDisplayId(ADISPLAY_ID_DEFAULT)));
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithCoords(0, 0),
+                              WithRelativeMotion(-5, 10), WithToolType(ToolType::FINGER),
+                              WithButtonState(0), WithPressure(0.0f),
+                              WithDisplayId(ADISPLAY_ID_DEFAULT)))));
 
     // Future taps should be re-enabled
     ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
 }
 
+TEST_F_WITH_FLAGS(GestureConverterTestWithChoreographer, KeypressCancelsHoverMove,
+                  REQUIRES_FLAGS_ENABLED(TOUCHPAD_PALM_REJECTION_V2)) {
+    const nsecs_t gestureStartTime = 1000;
+    InputDeviceContext deviceContext(*mDevice, EVENTHUB_ID);
+    GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
+    converter.setDisplayId(ADISPLAY_ID_DEFAULT);
+
+    // Start a move gesture at gestureStartTime
+    Gesture moveGesture(kGestureMove, gestureStartTime, gestureStartTime, -5, 10);
+    std::list<NotifyArgs> args =
+            converter.handleGesture(gestureStartTime, READ_TIME, gestureStartTime, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))));
+
+    // Key presses with IME connection should cancel ongoing move gesture
+    nsecs_t currentTime = gestureStartTime + 100;
+    mFakePolicy->setIsInputMethodConnectionActive(true);
+    mReader->getContext()->setLastKeyDownTimestamp(currentTime);
+    moveGesture = Gesture(kGestureMove, currentTime, currentTime, -5, 10);
+    args = converter.handleGesture(currentTime, READ_TIME, gestureStartTime, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionAction(AMOTION_EVENT_ACTION_HOVER_EXIT))));
+
+    // any updates in existing move gesture should be ignored
+    moveGesture = Gesture(kGestureMove, currentTime, currentTime, -5, 10);
+    args = converter.handleGesture(currentTime, READ_TIME, gestureStartTime, moveGesture);
+    ASSERT_EQ(0u, args.size());
+
+    // New gesture should not be affected
+    currentTime += 100;
+    moveGesture = Gesture(kGestureMove, currentTime, currentTime, -5, 10);
+    args = converter.handleGesture(currentTime, READ_TIME, currentTime, moveGesture);
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))));
+}
+
 } // namespace android
diff --git a/services/powermanager/WorkDuration.cpp b/services/powermanager/WorkDuration.cpp
index ef723c2..bd2b10a 100644
--- a/services/powermanager/WorkDuration.cpp
+++ b/services/powermanager/WorkDuration.cpp
@@ -25,8 +25,9 @@
 
 WorkDuration::WorkDuration(int64_t startTimestampNanos, int64_t totalDurationNanos,
                            int64_t cpuDurationNanos, int64_t gpuDurationNanos)
-      : workPeriodStartTimestampNanos(startTimestampNanos),
+      : timestampNanos(0),
         actualTotalDurationNanos(totalDurationNanos),
+        workPeriodStartTimestampNanos(startTimestampNanos),
         actualCpuDurationNanos(cpuDurationNanos),
         actualGpuDurationNanos(gpuDurationNanos) {}
 
diff --git a/services/powermanager/include/android/WorkDuration.h b/services/powermanager/include/android/WorkDuration.h
index 99b5b8b..26a575f 100644
--- a/services/powermanager/include/android/WorkDuration.h
+++ b/services/powermanager/include/android/WorkDuration.h
@@ -61,11 +61,11 @@
         return os;
     }
 
-    int64_t workPeriodStartTimestampNanos;
+    int64_t timestampNanos;
     int64_t actualTotalDurationNanos;
+    int64_t workPeriodStartTimestampNanos;
     int64_t actualCpuDurationNanos;
     int64_t actualGpuDurationNanos;
-    int64_t timestampNanos;
 };
 
 } // namespace android::os
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
index 24a9e22..704ece5 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp
@@ -165,8 +165,7 @@
     auto intError = mComposer.getChangedCompositionTypes(
             mId, &layerIds, &types);
     uint32_t numElements = layerIds.size();
-    auto error = static_cast<Error>(intError);
-    error = static_cast<Error>(intError);
+    const auto error = static_cast<Error>(intError);
     if (error != Error::NONE) {
         return error;
     }