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

content/browser/renderer_host/input/motion_event_android.h

Index: content/browser/renderer_host/input/motion_event_android.h
diff --git a/content/browser/renderer_host/input/motion_event_android.h b/content/browser/renderer_host/input/motion_event_android.h
index 4af9f72e00b2557ac841ec7565d665415dc212b1..44ef6fd55fbe115609b799e32ee795701e6125f2 100644
--- a/content/browser/renderer_host/input/motion_event_android.h
+++ b/content/browser/renderer_host/input/motion_event_android.h
@@ -70,6 +70,8 @@ class CONTENT_EXPORT MotionEventAndroid : public ui::MotionEvent {
   virtual float GetTouchMajor(size_t pointer_index) const override;
   virtual float GetTouchMinor(size_t pointer_index) const override;
   virtual float GetOrientation(size_t pointer_index) const override;
+  virtual float GetTilt(size_t pointer_index) const override;
+  virtual float GetTiltDirection(size_t pointer_index) const override;
   virtual float GetPressure(size_t pointer_index) const override;
   virtual base::TimeTicks GetEventTime() const override;
   virtual size_t GetHistorySize() const override;
@@ -120,6 +122,8 @@ class CONTENT_EXPORT MotionEventAndroid : public ui::MotionEvent {
     float touch_major;
     float touch_minor;
     float orientation;
+    float tilt;
+    float tiltDirection;
     ToolType tool_type;
   } cached_pointers_[MAX_POINTERS_TO_CACHE];