Target touches to the correct display.

ui/events/gestures/gesture_point.h

 // Copyright (c) 2012 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_GESTURES_GESTURE_POINT_H_
 #define UI_EVENTS_GESTURES_GESTURE_POINT_H_
 
 #include "base/basictypes.h"
 #include "ui/events/gestures/velocity_calculator.h"
 #include "ui/gfx/point.h"
@@ skipping 61 matching lines @@
 
   bool in_use() const { return point_id_ >= 0; }
 
   gfx::Vector2d ScrollDelta() const;
 
   float XVelocity() { return velocity_calculator_.XVelocity(); }
   float YVelocity() { return velocity_calculator_.YVelocity(); }
 
   const gfx::Rect& enclosing_rectangle() const { return enclosing_rect_; }
 
+  void set_source_device_id(int source_device_id) {
+    source_device_id_ = source_device_id;
+  }
+  int source_device_id() const { return source_device_id_; }
+
  private:
   // Various statistical functions to manipulate gestures.
 
   // Tests if the point has a consistent scroll vector across a window of touch
   // move events.
   bool IsConsistentScrollingActionUnderway() const;
   bool IsInClickTimeWindow() const;
   bool IsInClickAggregateTimeWindow(double before, double after) const;
   bool IsPointInsideManhattanSquare(gfx::Point p1, gfx::Point p2) const;
   bool IsOverMinFlickSpeed();
@@ skipping 32 matching lines @@
   int point_id_;
   int touch_id_;
 
   // Represents the rectangle that encloses the circles/ellipses
   // generated by a sequence of touch events
   gfx::Rect enclosing_rect_;
 
   // Count of the number of events with same direction.
   gfx::Vector2d same_direction_count_;
 
+  int source_device_id_;
+
   DISALLOW_COPY_AND_ASSIGN(GesturePoint);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_GESTURES_GESTURE_POINT_H_