Add GESTURE_{X,Y}_OFFSET axes to input HAL

Bug: 246758376
Test: check that build succeeds
Change-Id: I31e8b69756847d9e70a442cdfd89cd90ec79191f
diff --git a/input/common/aidl/aidl_api/android.hardware.input.common/current/android/hardware/input/common/Axis.aidl b/input/common/aidl/aidl_api/android.hardware.input.common/current/android/hardware/input/common/Axis.aidl
index 2114c7d..7de95b1 100644
--- a/input/common/aidl/aidl_api/android.hardware.input.common/current/android/hardware/input/common/Axis.aidl
+++ b/input/common/aidl/aidl_api/android.hardware.input.common/current/android/hardware/input/common/Axis.aidl
@@ -79,4 +79,6 @@
   GENERIC_14 = 45,
   GENERIC_15 = 46,
   GENERIC_16 = 47,
+  GESTURE_X_OFFSET = 48,
+  GESTURE_Y_OFFSET = 49,
 }
diff --git a/input/common/aidl/android/hardware/input/common/Axis.aidl b/input/common/aidl/android/hardware/input/common/Axis.aidl
index 1150949..1257687 100644
--- a/input/common/aidl/android/hardware/input/common/Axis.aidl
+++ b/input/common/aidl/android/hardware/input/common/Axis.aidl
@@ -384,4 +384,21 @@
      * The interpretation of a generic axis is device-specific.
      */
     GENERIC_16 = 47,
+
+    /**
+     * Axis constant: X gesture offset axis of a motion event.
+     *
+     * - For a touch pad, reports the distance that a swipe gesture has moved in the X
+     *   axis, as a proportion of the touch pad's size. For example, if a touch pad is
+     *   1000 units wide, and a swipe gesture starts at X = 500 then moves to X = 400,
+     *   this axis would have a value of -0.1.
+     */
+    GESTURE_X_OFFSET = 48,
+
+    /**
+     * Axis constant: Y gesture offset axis of a motion event.
+     *
+     * The same as GESTURE_X_OFFSET, but for the Y axis.
+     */
+    GESTURE_Y_OFFSET = 49,
 }