Add support to mouse controlled scrolling

Bug: 383555305
Test: N/A
Flag: com.android.hardware.input.mouse_scrolling_acceleration
Change-Id: I26c39339f0ec8b557d42a350731e3e6a2ba0a8db

Author: yuhan202

libs/input/android/os/IInputConstants.aidl

@@ -76,6 +76,9 @@ interface IInputConstants
     /* The default pointer acceleration value. */
     const int DEFAULT_POINTER_ACCELERATION = 3;
 
+    /* The default mouse wheel acceleration value. */
+    const int DEFAULT_MOUSE_WHEEL_ACCELERATION = 4;
+
     /**
      * Use the default Velocity Tracker Strategy. Different axes may use different default
      * strategies.

services/inputflinger/include/InputReaderBase.h

@@ -279,7 +279,10 @@ struct InputReaderConfiguration {
                                              static_cast<float>(
                                                      android::os::IInputConstants::
                                                              DEFAULT_POINTER_ACCELERATION)),
-            wheelVelocityControlParameters(1.0f, 15.0f, 50.0f, 4.0f),
+            wheelVelocityControlParameters(1.0f, 15.0f, 50.0f,
+                                           static_cast<float>(
+                                                   android::os::IInputConstants::
+                                                           DEFAULT_MOUSE_WHEEL_ACCELERATION)),
             pointerGesturesEnabled(true),
             pointerGestureQuietInterval(100 * 1000000LL),            // 100 ms
             pointerGestureDragMinSwitchSpeed(50),                    // 50 pixels per second