Pass MotionEvent tilt angles to Blink on Android.

content/browser/renderer_host/input/touch_emulator.cc

Index: content/browser/renderer_host/input/touch_emulator.cc
diff --git a/content/browser/renderer_host/input/touch_emulator.cc b/content/browser/renderer_host/input/touch_emulator.cc
index d22065e91996143003c35fcd4809b769bcc31ea9..82c438738adf4c828ae128c0008bf5205980622d 100644
--- a/content/browser/renderer_host/input/touch_emulator.cc
+++ b/content/browser/renderer_host/input/touch_emulator.cc
@@ -447,6 +447,14 @@ void TouchEmulator::FillTouchEventAndPoint(const WebMouseEvent& mouse_event) {
   point.screenPosition.x = mouse_event.globalX;
   point.position.y = mouse_event.y;
   point.screenPosition.y = mouse_event.globalY;
+  // TODO(e_hakkinen): Leave only either tilt and tiltOrientation, tiltRad
+  //                   and tiltOrientationRad or tiltX and tiltY.
+  point.tilt = 0.f;
+  point.tiltRad = 0.f;
+  point.tiltOrientation = 0.f;
+  point.tiltOrientationRad = 0.f;
+  point.tiltX = 0.f;
+  point.tiltY = 0.f;
 }
 
 bool TouchEmulator::InPinchGestureMode() const {