Rename RootWindowHost* to WindowTreeHost*

content/browser/renderer_host/input/synthetic_gesture_target_aura.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_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_AURA_H_
 
 #include "base/time/time.h"
 #include "content/browser/renderer_host/input/synthetic_gesture_target_base.h"
 #include "content/common/input/synthetic_gesture_params.h"
 
 namespace aura {
-class RootWindowHostDelegate;
 class Window;
+class WindowTreeHostDelegate;
 
 namespace client {
 class ScreenPositionClient;
 }
 }  // namespace aura
 
 namespace content {
 
 class InputEvent;
 
@@ skipping 17 matching lines @@
   virtual SyntheticGestureParams::GestureSourceType
       GetDefaultSyntheticGestureSourceType() const OVERRIDE;
   virtual bool SupportsSyntheticGestureSourceType(
       SyntheticGestureParams::GestureSourceType gesture_source_type) const
       OVERRIDE;
 
   virtual int GetTouchSlopInDips() const OVERRIDE;
 
  private:
   aura::Window* GetWindow() const;
-  aura::RootWindowHostDelegate* GetRootWindowHostDelegate() const;
+  aura::WindowTreeHostDelegate* GetRootWindowHostDelegate() const;
   aura::client::ScreenPositionClient* GetScreenPositionClient() const;
 
   DISALLOW_COPY_AND_ASSIGN(SyntheticGestureTargetAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_AURA_H_