Added experimental Touch.tilt, Touch.tiltDirection support for Android

content/browser/renderer_host/input/motion_event_android.cc

Index: content/browser/renderer_host/input/motion_event_android.cc
diff --git a/content/browser/renderer_host/input/motion_event_android.cc b/content/browser/renderer_host/input/motion_event_android.cc
index fa21047d71b78cdf37b5c39c2ef6fe5799c2f15d..d8c0b445f0443659bf6c07800716608c3f0c7ab5 100644
--- a/content/browser/renderer_host/input/motion_event_android.cc
+++ b/content/browser/renderer_host/input/motion_event_android.cc
@@ -240,6 +240,14 @@ float MotionEventAndroid::GetOrientation(size_t pointer_index) const {
       AttachCurrentThread(), event_.obj(), pointer_index));
 }
 
+float MotionEventAndroid::GetTilt(size_t pointer_index) const {
+  DCHECK_LT(pointer_index, cached_pointer_count_);
+  if (!event_.obj())
+    return 0.f;
+  return Java_MotionEvent_getAxisValueF_I_I(
+      AttachCurrentThread(), event_.obj(), AXIS_TILT, pointer_index);
+}
+
 float MotionEventAndroid::GetPressure(size_t pointer_index) const {
   DCHECK_LT(pointer_index, cached_pointer_count_);
   // Note that this early return is a special case exercised only in testing, as