input: Restrict synthetic touch gesture to view bounds.

content/browser/renderer_host/input/synthetic_gesture_target.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_H_
 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_H_
 
 #include "base/time/time.h"
 #include "content/common/content_export.h"
 #include "content/common/input/synthetic_gesture_params.h"
+#include "ui/gfx/geometry/size.h"
 
 namespace blink {
 class WebInputEvent;
 }
 
 namespace content {
 
 // Interface between the synthetic gesture controller and the RenderWidgetHost.
 class CONTENT_EXPORT SyntheticGestureTarget {
  public:
@@ skipping 18 matching lines @@
   // stopped moving.
   virtual base::TimeDelta PointerAssumedStoppedTime() const = 0;
 
   // Returns the maximum number of DIPs a touch pointer can move without being
   // considered moving by the platform.
   virtual float GetTouchSlopInDips() const = 0;
 
   // Returns the minimum number of DIPs two touch pointers have to be apart
   // to perform a pinch-zoom.
   virtual float GetMinScalingSpanInDips() const = 0;
+
+  virtual gfx::Size GetViewSize() const = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_H_