diff --git a/services/core/java/com/android/server/input/InputManagerService.java b/services/core/java/com/android/server/input/InputManagerService.java
index c15242a..140a28f 100644
--- a/services/core/java/com/android/server/input/InputManagerService.java
+++ b/services/core/java/com/android/server/input/InputManagerService.java
@@ -144,6 +144,7 @@
 import java.util.Locale;
 import java.util.Map;
 import java.util.Objects;
+import java.util.OptionalInt;
 
 /*
  * Wraps the C++ InputManager and provides its callbacks.
@@ -2915,48 +2916,17 @@
 
     // Native callback
     @SuppressWarnings("unused")
-    private void notifyWindowUnresponsive(IBinder token, String reason) {
-        int gestureMonitorPid = -1;
-        synchronized (mInputMonitors) {
-            final GestureMonitorSpyWindow gestureMonitor = mInputMonitors.get(token);
-            if (gestureMonitor != null) {
-                gestureMonitorPid = gestureMonitor.mWindowHandle.ownerPid;
-            }
-        }
-        if (gestureMonitorPid != -1) {
-            mWindowManagerCallbacks.notifyGestureMonitorUnresponsive(gestureMonitorPid, reason);
-            return;
-        }
-        mWindowManagerCallbacks.notifyWindowUnresponsive(token, reason);
+    private void notifyWindowUnresponsive(IBinder token, int pid, boolean isPidValid,
+            String reason) {
+        mWindowManagerCallbacks.notifyWindowUnresponsive(token,
+                isPidValid ? OptionalInt.of(pid) : OptionalInt.empty(), reason);
     }
 
     // Native callback
     @SuppressWarnings("unused")
-    private void notifyMonitorUnresponsive(int pid, String reason) {
-        mWindowManagerCallbacks.notifyGestureMonitorUnresponsive(pid, reason);
-    }
-
-    // Native callback
-    @SuppressWarnings("unused")
-    private void notifyWindowResponsive(IBinder token) {
-        int gestureMonitorPid = -1;
-        synchronized (mInputMonitors) {
-            final GestureMonitorSpyWindow gestureMonitor = mInputMonitors.get(token);
-            if (gestureMonitor != null) {
-                gestureMonitorPid = gestureMonitor.mWindowHandle.ownerPid;
-            }
-        }
-        if (gestureMonitorPid != -1) {
-            mWindowManagerCallbacks.notifyGestureMonitorResponsive(gestureMonitorPid);
-            return;
-        }
-        mWindowManagerCallbacks.notifyWindowResponsive(token);
-    }
-
-    // Native callback
-    @SuppressWarnings("unused")
-    private void notifyMonitorResponsive(int pid) {
-        mWindowManagerCallbacks.notifyGestureMonitorResponsive(pid);
+    private void notifyWindowResponsive(IBinder token, int pid, boolean isPidValid) {
+        mWindowManagerCallbacks.notifyWindowResponsive(token,
+                isPidValid ? OptionalInt.of(pid) : OptionalInt.empty());
     }
 
     // Native callback.
@@ -3329,34 +3299,22 @@
         void notifyNoFocusedWindowAnr(InputApplicationHandle applicationHandle);
 
         /**
-         * Notify the window manager about a gesture monitor that is unresponsive.
-         *
-         * @param pid the pid of the gesture monitor process
-         * @param reason the reason why this connection is unresponsive
-         */
-        void notifyGestureMonitorUnresponsive(int pid, @NonNull String reason);
-
-        /**
          * Notify the window manager about a window that is unresponsive.
          *
          * @param token the token that can be used to look up the window
+         * @param pid the pid of the window owner, if known
          * @param reason the reason why this connection is unresponsive
          */
-        void notifyWindowUnresponsive(@NonNull IBinder token, @NonNull String reason);
-
-        /**
-         * Notify the window manager about a gesture monitor that has become responsive.
-         *
-         * @param pid the pid of the gesture monitor process
-         */
-        void notifyGestureMonitorResponsive(int pid);
+        void notifyWindowUnresponsive(@NonNull IBinder token, @NonNull OptionalInt pid,
+                @NonNull String reason);
 
         /**
          * Notify the window manager about a window that has become responsive.
          *
          * @param token the token that can be used to look up the window
+         * @param pid the pid of the window owner, if known
          */
-        void notifyWindowResponsive(@NonNull IBinder token);
+        void notifyWindowResponsive(@NonNull IBinder token, @NonNull OptionalInt pid);
 
         /**
          * This callback is invoked when an event first arrives to InputDispatcher and before it is
diff --git a/services/core/java/com/android/server/wm/AnrController.java b/services/core/java/com/android/server/wm/AnrController.java
index 3d54b27..6befefd 100644
--- a/services/core/java/com/android/server/wm/AnrController.java
+++ b/services/core/java/com/android/server/wm/AnrController.java
@@ -21,6 +21,7 @@
 import static com.android.server.wm.ActivityRecord.INVALID_PID;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 
+import android.annotation.NonNull;
 import android.os.Build;
 import android.os.IBinder;
 import android.os.Process;
@@ -35,6 +36,7 @@
 
 import java.io.File;
 import java.util.ArrayList;
+import java.util.OptionalInt;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
@@ -75,7 +77,33 @@
         activity.inputDispatchingTimedOut(reason, INVALID_PID);
     }
 
-    void notifyWindowUnresponsive(IBinder inputToken, String reason) {
+
+    /**
+     * Notify a window was unresponsive.
+     *
+     * @param token - the input token of the window
+     * @param pid - the pid of the window, if known
+     * @param reason - the reason for the window being unresponsive
+     */
+    void notifyWindowUnresponsive(@NonNull IBinder token, @NonNull OptionalInt pid,
+            @NonNull String reason) {
+        if (notifyWindowUnresponsive(token, reason)) {
+            return;
+        }
+        if (!pid.isPresent()) {
+            Slog.w(TAG_WM, "Failed to notify that window token=" + token + " was unresponsive.");
+            return;
+        }
+        notifyWindowUnresponsive(pid.getAsInt(), reason);
+    }
+
+    /**
+     * Notify a window identified by its input token was unresponsive.
+     *
+     * @return true if the window was identified by the given input token and the request was
+     *         handled, false otherwise.
+     */
+    private boolean notifyWindowUnresponsive(@NonNull IBinder inputToken, String reason) {
         preDumpIfLockTooSlow();
         final int pid;
         final boolean aboveSystem;
@@ -83,10 +111,8 @@
         synchronized (mService.mGlobalLock) {
             InputTarget target = mService.getInputTargetFromToken(inputToken);
             if (target == null) {
-                Slog.e(TAG_WM, "Unknown token, dropping notifyConnectionUnresponsive request");
-                return;
+                return false;
             }
-
             WindowState windowState = target.getWindowState();
             pid = target.getPid();
             // Blame the activity if the input token belongs to the window. If the target is
@@ -102,34 +128,63 @@
         } else {
             mService.mAmInternal.inputDispatchingTimedOut(pid, aboveSystem, reason);
         }
+        return true;
     }
 
-    void notifyWindowResponsive(IBinder inputToken) {
+    /**
+     * Notify a window owned by the provided pid was unresponsive.
+     */
+    private void notifyWindowUnresponsive(int pid, String reason) {
+        Slog.i(TAG_WM, "ANR in input window owned by pid=" + pid + ". Reason: " + reason);
+        dumpAnrStateLocked(null /* activity */, null /* windowState */, reason);
+
+        // We cannot determine the z-order of the window, so place the anr dialog as high
+        // as possible.
+        mService.mAmInternal.inputDispatchingTimedOut(pid, true /*aboveSystem*/, reason);
+    }
+
+    /**
+     * Notify a window was responsive after previously being unresponsive.
+     *
+     * @param token - the input token of the window
+     * @param pid - the pid of the window, if known
+     */
+    void notifyWindowResponsive(@NonNull IBinder token, @NonNull OptionalInt pid) {
+        if (notifyWindowResponsive(token)) {
+            return;
+        }
+        if (!pid.isPresent()) {
+            Slog.w(TAG_WM, "Failed to notify that window token=" + token + " was responsive.");
+            return;
+        }
+        notifyWindowResponsive(pid.getAsInt());
+    }
+
+    /**
+     * Notify a window identified by its input token was responsive after previously being
+     * unresponsive.
+     *
+     * @return true if the window was identified by the given input token and the request was
+     *         handled, false otherwise.
+     */
+    private boolean notifyWindowResponsive(@NonNull IBinder inputToken) {
         final int pid;
         synchronized (mService.mGlobalLock) {
             InputTarget target = mService.getInputTargetFromToken(inputToken);
             if (target == null) {
-                Slog.e(TAG_WM, "Unknown token, dropping notifyWindowConnectionResponsive request");
-                return;
+                return false;
             }
             pid = target.getPid();
         }
         mService.mAmInternal.inputDispatchingResumed(pid);
+        return true;
     }
 
-    void notifyGestureMonitorUnresponsive(int gestureMonitorPid, String reason) {
-        preDumpIfLockTooSlow();
-        synchronized (mService.mGlobalLock) {
-            Slog.i(TAG_WM, "ANR in gesture monitor owned by pid:" + gestureMonitorPid
-                    + ".  Reason: " + reason);
-            dumpAnrStateLocked(null /* activity */, null /* windowState */, reason);
-        }
-        mService.mAmInternal.inputDispatchingTimedOut(gestureMonitorPid, /* aboveSystem */ true,
-                reason);
-    }
-
-    void notifyGestureMonitorResponsive(int gestureMonitorPid) {
-        mService.mAmInternal.inputDispatchingResumed(gestureMonitorPid);
+    /**
+     * Notify a window owned by the provided pid was responsive after previously being unresponsive.
+     */
+    private void notifyWindowResponsive(int pid) {
+        mService.mAmInternal.inputDispatchingResumed(pid);
     }
 
     /**
@@ -228,12 +283,7 @@
         mService.mAtmService.saveANRState(reason);
     }
 
-    private boolean isWindowAboveSystem(WindowState windowState) {
-        if (windowState == null) {
-            // If the window state is not available we cannot easily determine its z order. Try to
-            // place the anr dialog as high as possible.
-            return true;
-        }
+    private boolean isWindowAboveSystem(@NonNull WindowState windowState) {
         int systemAlertLayer = mService.mPolicy.getWindowLayerFromTypeLw(
                 TYPE_APPLICATION_OVERLAY, windowState.mOwnerCanAddInternalSystemWindow);
         return windowState.mBaseLayer > systemAlertLayer;
diff --git a/services/core/java/com/android/server/wm/InputManagerCallback.java b/services/core/java/com/android/server/wm/InputManagerCallback.java
index 1f0fdcf..8d1425d 100644
--- a/services/core/java/com/android/server/wm/InputManagerCallback.java
+++ b/services/core/java/com/android/server/wm/InputManagerCallback.java
@@ -39,6 +39,7 @@
 import com.android.server.input.InputManagerService;
 
 import java.io.PrintWriter;
+import java.util.OptionalInt;
 
 final class InputManagerCallback implements InputManagerService.WindowManagerCallbacks {
     private static final String TAG = TAG_WITH_CLASS_NAME ? "InputManagerCallback" : TAG_WM;
@@ -98,23 +99,14 @@
     }
 
     @Override
-    public void notifyGestureMonitorUnresponsive(int pid, @NonNull String reason) {
-        mService.mAnrController.notifyGestureMonitorUnresponsive(pid, reason);
+    public void notifyWindowUnresponsive(@NonNull IBinder token, @NonNull OptionalInt pid,
+            @NonNull String reason) {
+        mService.mAnrController.notifyWindowUnresponsive(token, pid, reason);
     }
 
     @Override
-    public void notifyWindowUnresponsive(@NonNull IBinder token, String reason) {
-        mService.mAnrController.notifyWindowUnresponsive(token, reason);
-    }
-
-    @Override
-    public void notifyGestureMonitorResponsive(int pid) {
-        mService.mAnrController.notifyGestureMonitorResponsive(pid);
-    }
-
-    @Override
-    public void notifyWindowResponsive(@NonNull IBinder token) {
-        mService.mAnrController.notifyWindowResponsive(token);
+    public void notifyWindowResponsive(@NonNull IBinder token, @NonNull OptionalInt pid) {
+        mService.mAnrController.notifyWindowResponsive(token, pid);
     }
 
     /** Notifies that the input device configuration has changed. */
diff --git a/services/core/jni/com_android_server_input_InputManagerService.cpp b/services/core/jni/com_android_server_input_InputManagerService.cpp
index 3c122b0..31b5579 100644
--- a/services/core/jni/com_android_server_input_InputManagerService.cpp
+++ b/services/core/jni/com_android_server_input_InputManagerService.cpp
@@ -96,8 +96,6 @@
     jmethodID notifyNoFocusedWindowAnr;
     jmethodID notifyWindowUnresponsive;
     jmethodID notifyWindowResponsive;
-    jmethodID notifyMonitorUnresponsive;
-    jmethodID notifyMonitorResponsive;
     jmethodID notifyFocusChanged;
     jmethodID notifySensorEvent;
     jmethodID notifySensorAccuracy;
@@ -308,10 +306,9 @@
     void notifyConfigurationChanged(nsecs_t when) override;
     // ANR-related callbacks -- start
     void notifyNoFocusedWindowAnr(const std::shared_ptr<InputApplicationHandle>& handle) override;
-    void notifyWindowUnresponsive(const sp<IBinder>& token, const std::string& reason) override;
-    void notifyWindowResponsive(const sp<IBinder>& token) override;
-    void notifyMonitorUnresponsive(int32_t pid, const std::string& reason) override;
-    void notifyMonitorResponsive(int32_t pid) override;
+    void notifyWindowUnresponsive(const sp<IBinder>& token, std::optional<int32_t> pid,
+                                  const std::string& reason) override;
+    void notifyWindowResponsive(const sp<IBinder>& token, std::optional<int32_t> pid) override;
     // ANR-related callbacks -- end
     void notifyInputChannelBroken(const sp<IBinder>& token) override;
     void notifyFocusChanged(const sp<IBinder>& oldToken, const sp<IBinder>& newToken) override;
@@ -838,6 +835,7 @@
 }
 
 void NativeInputManager::notifyWindowUnresponsive(const sp<IBinder>& token,
+                                                  std::optional<int32_t> pid,
                                                   const std::string& reason) {
 #if DEBUG_INPUT_DISPATCHER_POLICY
     ALOGD("notifyWindowUnresponsive");
@@ -851,11 +849,12 @@
     ScopedLocalRef<jstring> reasonObj(env, env->NewStringUTF(reason.c_str()));
 
     env->CallVoidMethod(mServiceObj, gServiceClassInfo.notifyWindowUnresponsive, tokenObj,
-                        reasonObj.get());
+                        pid.value_or(0), pid.has_value(), reasonObj.get());
     checkAndClearExceptionFromCallback(env, "notifyWindowUnresponsive");
 }
 
-void NativeInputManager::notifyWindowResponsive(const sp<IBinder>& token) {
+void NativeInputManager::notifyWindowResponsive(const sp<IBinder>& token,
+                                                std::optional<int32_t> pid) {
 #if DEBUG_INPUT_DISPATCHER_POLICY
     ALOGD("notifyWindowResponsive");
 #endif
@@ -866,39 +865,11 @@
 
     jobject tokenObj = javaObjectForIBinder(env, token);
 
-    env->CallVoidMethod(mServiceObj, gServiceClassInfo.notifyWindowResponsive, tokenObj);
+    env->CallVoidMethod(mServiceObj, gServiceClassInfo.notifyWindowResponsive, tokenObj,
+                        pid.value_or(0), pid.has_value());
     checkAndClearExceptionFromCallback(env, "notifyWindowResponsive");
 }
 
-void NativeInputManager::notifyMonitorUnresponsive(int32_t pid, const std::string& reason) {
-#if DEBUG_INPUT_DISPATCHER_POLICY
-    ALOGD("notifyMonitorUnresponsive");
-#endif
-    ATRACE_CALL();
-
-    JNIEnv* env = jniEnv();
-    ScopedLocalFrame localFrame(env);
-
-    ScopedLocalRef<jstring> reasonObj(env, env->NewStringUTF(reason.c_str()));
-
-    env->CallVoidMethod(mServiceObj, gServiceClassInfo.notifyMonitorUnresponsive, pid,
-                        reasonObj.get());
-    checkAndClearExceptionFromCallback(env, "notifyMonitorUnresponsive");
-}
-
-void NativeInputManager::notifyMonitorResponsive(int32_t pid) {
-#if DEBUG_INPUT_DISPATCHER_POLICY
-    ALOGD("notifyMonitorResponsive");
-#endif
-    ATRACE_CALL();
-
-    JNIEnv* env = jniEnv();
-    ScopedLocalFrame localFrame(env);
-
-    env->CallVoidMethod(mServiceObj, gServiceClassInfo.notifyMonitorResponsive, pid);
-    checkAndClearExceptionFromCallback(env, "notifyMonitorResponsive");
-}
-
 void NativeInputManager::notifyInputChannelBroken(const sp<IBinder>& token) {
 #if DEBUG_INPUT_DISPATCHER_POLICY
     ALOGD("notifyInputChannelBroken");
@@ -2506,16 +2477,10 @@
                   "(Landroid/view/InputApplicationHandle;)V");
 
     GET_METHOD_ID(gServiceClassInfo.notifyWindowUnresponsive, clazz, "notifyWindowUnresponsive",
-                  "(Landroid/os/IBinder;Ljava/lang/String;)V");
-
-    GET_METHOD_ID(gServiceClassInfo.notifyMonitorUnresponsive, clazz, "notifyMonitorUnresponsive",
-                  "(ILjava/lang/String;)V");
+                  "(Landroid/os/IBinder;IZLjava/lang/String;)V");
 
     GET_METHOD_ID(gServiceClassInfo.notifyWindowResponsive, clazz, "notifyWindowResponsive",
-                  "(Landroid/os/IBinder;)V");
-
-    GET_METHOD_ID(gServiceClassInfo.notifyMonitorResponsive, clazz, "notifyMonitorResponsive",
-                  "(I)V");
+                  "(Landroid/os/IBinder;IZ)V");
 
     GET_METHOD_ID(gServiceClassInfo.filterInputEvent, clazz,
             "filterInputEvent", "(Landroid/view/InputEvent;I)Z");