Extend MotionEvent to have tool type and button state

ui/events/gestures/motion_event_aura.cc

 // Copyright 2014 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.
 
 #include "ui/events/gestures/motion_event_aura.h"
 
 #include "base/logging.h"
 #include "ui/events/gestures/gesture_configuration.h"
 
 namespace ui {
@@ skipping 138 matching lines @@
   NOTIMPLEMENTED();
   return 0;
 }
 
 float MotionEventAura::GetHistoricalY(size_t pointer_index,
                                     size_t historical_index) const {
   NOTIMPLEMENTED();
   return 0;
 }
 
+MotionEvent::ToolType MotionEventAura::GetToolType(size_t pointer_index) const {
+  NOTIMPLEMENTED();
+  return 0;

[jdduke (slow), 2014/06/20 15:33:25]

Maybe return TOOL_TYPE_UNKNOWN?

[Changwan Ryu, 2014/06/20 21:00:34]

Done.

+}
+
+int MotionEventAura::GetButtonState() const {
+  NOTIMPLEMENTED();
+  return 0;
+}
+
 scoped_ptr<MotionEvent> MotionEventAura::Clone() const {
   return scoped_ptr<MotionEvent>(new MotionEventAura(pointer_count_,
                                                      last_touch_time_,
                                                      cached_action_,
                                                      cached_action_index_,
                                                      active_touches_));
 }
 scoped_ptr<MotionEvent> MotionEventAura::Cancel() const {
   return scoped_ptr<MotionEvent>(new MotionEventAura(
       pointer_count_, last_touch_time_, ACTION_CANCEL, -1, active_touches_));
@@ skipping 77 matching lines @@
 size_t MotionEventAura::GetIndexFromId(int id) const {
   for (size_t i = 0; i < pointer_count_; ++i) {
     if (active_touches_[i].touch_id == id)
       return i;
   }
   NOTREACHED();
   return 0;
 }
 
 }  // namespace ui