Extend MotionEvent to have tool type and button state

ui/events/gestures/motion_event_aura.h

 // 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.
 
 #ifndef UI_EVENTS_GESTURE_DETECTION_UI_MOTION_EVENT_H_
 #define UI_EVENTS_GESTURE_DETECTION_UI_MOTION_EVENT_H_
 
 #include "ui/events/gesture_detection/motion_event.h"
 
 #include <map>
@@ skipping 30 matching lines @@
 
   virtual size_t GetHistorySize() const OVERRIDE;
   virtual base::TimeTicks GetHistoricalEventTime(size_t historical_index) const
       OVERRIDE;
   virtual float GetHistoricalTouchMajor(size_t pointer_index,
                                         size_t historical_index) const OVERRIDE;
   virtual float GetHistoricalX(size_t pointer_index,
                                size_t historical_index) const OVERRIDE;
   virtual float GetHistoricalY(size_t pointer_index,
                                size_t historical_index) const OVERRIDE;
+  virtual ToolType GetToolType(size_t pointer_index) const OVERRIDE;
+  virtual int GetButtonState() const OVERRIDE;
 
   virtual scoped_ptr<MotionEvent> Clone() const OVERRIDE;
   virtual scoped_ptr<MotionEvent> Cancel() const OVERRIDE;
 
   int GetSourceDeviceId(size_t pointer_index) const;
 
   // We can't cleanup removed touch points immediately upon receipt of a
   // TouchCancel or TouchRelease, as the MotionEvent needs to be able to report
   // information about those touch events. Once the MotionEvent has been
   // processed, we call CleanupRemovedTouchPoints to do the required
@@ skipping 36 matching lines @@
   // We want constant time indexing by pointer_index, and fast indexing by id.
   // TODO(tdresser): figure out which constant to use here.
   PointData active_touches_[GestureSequence::kMaxGesturePoints];
 
   DISALLOW_COPY_AND_ASSIGN(MotionEventAura);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_GESTURE_DETECTION_UI_MOTION_EVENT_H_