[Android] Map raw touch coordinates to global gesture locations

ui/events/gesture_detection/gesture_event_data_packet.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_GESTURE_EVENT_DATA_PACKET_H_
 #define UI_EVENTS_GESTURE_DETECTION_GESTURE_EVENT_DATA_PACKET_H_
 
 #include "ui/events/gesture_detection/gesture_detection_export.h"
 #include "ui/events/gesture_detection/gesture_event_data.h"
 
@@ skipping 26 matching lines @@
   static GestureEventDataPacket FromTouch(const ui::MotionEvent& touch);
   static GestureEventDataPacket FromTouchTimeout(
       const GestureEventData& gesture);
 
   void Push(const GestureEventData& gesture);
 
   const base::TimeTicks& timestamp() const { return timestamp_; }
   const GestureEventData& gesture(size_t i) const { return gestures_[i]; }
   size_t gesture_count() const { return gesture_count_; }
   GestureSource gesture_source() const { return gesture_source_; }
-  gfx::PointF touch_location() const { return touch_location_; }
+  const gfx::PointF& touch_location() const { return touch_location_; }
+  const gfx::PointF& raw_touch_location() const { return raw_touch_location_; }
 
  private:
   GestureEventDataPacket(base::TimeTicks timestamp,
                          GestureSource source,
-                         gfx::PointF touch_location);
+                         const gfx::PointF& touch_location,
+                         const gfx::PointF& raw_touch_location);
 
   enum { kMaxGesturesPerTouch = 5 };
   base::TimeTicks timestamp_;
   GestureEventData gestures_[kMaxGesturesPerTouch];
   size_t gesture_count_;
   gfx::PointF touch_location_;
+  gfx::PointF raw_touch_location_;
   GestureSource gesture_source_;
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_GESTURE_DETECTION_GESTURE_EVENT_DATA_PACKET_H_