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

content/browser/renderer_host/input/motion_event_web.cc

Index: content/browser/renderer_host/input/motion_event_web.cc
diff --git a/content/browser/renderer_host/input/motion_event_web.cc b/content/browser/renderer_host/input/motion_event_web.cc
index 2d276f0371ea23757ad508f23df1cdb496d015ed..c69caa3f99abb8ed3349a9246b3586d84c417625 100644
--- a/content/browser/renderer_host/input/motion_event_web.cc
+++ b/content/browser/renderer_host/input/motion_event_web.cc
@@ -144,6 +144,14 @@ float MotionEventWeb::GetOrientation(size_t pointer_index) const {
   return rotation_angle_rad;
 }
 
+float MotionEventWeb::GetTilt(size_t pointer_index) const {
+  return std::numeric_limits<float>::quiet_NaN();
+}
+
+float MotionEventWeb::GetTiltDirection(size_t pointer_index) const {
+  return std::numeric_limits<float>::quiet_NaN();
+}
+
 float MotionEventWeb::GetPressure(size_t pointer_index) const {
   return 0.f;
 }