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

content/browser/renderer_host/input/web_input_event_util.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // MSVC++ requires this to be set before any other includes to get M_PI.
 #define _USE_MATH_DEFINES
 
 #include "content/browser/renderer_host/input/web_input_event_util.h"
 
 #include <cmath>
@@ skipping 213 matching lines @@
     // report elliptical touches).
     touch.radiusX = minor_radius;
     touch.radiusY = major_radius;
     touch.rotationAngle = orientation_deg;
   } else {
     touch.radiusX = major_radius;
     touch.radiusY = minor_radius;
     touch.rotationAngle = orientation_deg + 90;
   }
 
+  touch.tilt = event.GetTilt(pointer_index) * 180.f / M_PI;
   touch.force = event.GetPressure(pointer_index);
 
   return touch;
 }
 
 }  // namespace
 
 namespace content {
 
 void UpdateWindowsKeyCodeAndKeyIdentifier(blink::WebKeyboardEvent* event,
@@ skipping 207 matching lines @@
     flags |= ui::EF_CAPS_LOCK_DOWN;
   if (modifiers & blink::WebInputEvent::IsAutoRepeat)
     flags |= ui::EF_IS_REPEAT;
   if (modifiers & blink::WebInputEvent::IsKeyPad)
     flags |= ui::EF_NUMPAD_KEY;
 
   return flags;
 }
 
 }  // namespace content