Introdcue AshWindowTreeHost and move ash/chrome specific code in WTH to ash.

mojo/examples/aura_demo/window_tree_host_mojo.h

 // Copyright (c) 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 MOJO_EXAMPLES_AURA_DEMO_WINDOW_TREE_HOST_MOJO_H_
 #define MOJO_EXAMPLES_AURA_DEMO_WINDOW_TREE_HOST_MOJO_H_
 
 #include "base/bind.h"
 #include "mojo/public/bindings/remote_ptr.h"
 #include "mojo/services/native_viewport/native_viewport.mojom.h"
@@ skipping 18 matching lines @@
   virtual ~WindowTreeHostMojo();
 
   gfx::Rect bounds() const { return bounds_; }
   ScopedMessagePipeHandle TakeGLES2PipeHandle() { return gles2_handle_.Pass(); }
 
  private:
   // WindowTreeHost:
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void Hide() OVERRIDE;
-  virtual void ToggleFullScreen() OVERRIDE;
   virtual gfx::Rect GetBounds() const OVERRIDE;
   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
-  virtual gfx::Insets GetInsets() const OVERRIDE;
-  virtual void SetInsets(const gfx::Insets& insets) OVERRIDE;
   virtual gfx::Point GetLocationOnNativeScreen() const OVERRIDE;
   virtual void SetCapture() OVERRIDE;
   virtual void ReleaseCapture() OVERRIDE;
   virtual bool QueryMouseLocation(gfx::Point* location_return) OVERRIDE;
-  virtual bool ConfineCursorToRootWindow() OVERRIDE;
-  virtual void UnConfineCursor() OVERRIDE;
   virtual void PostNativeEvent(const base::NativeEvent& native_event) OVERRIDE;
   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
   virtual void SetCursorNative(gfx::NativeCursor cursor) OVERRIDE;
   virtual void MoveCursorToNative(const gfx::Point& location) OVERRIDE;
   virtual void OnCursorVisibilityChangedNative(bool show) OVERRIDE;
 
   // ui::EventSource:
   virtual ui::EventProcessor* GetEventProcessor() OVERRIDE;
 
   // Overridden from NativeViewportClient:
@@ skipping 10 matching lines @@
 
   gfx::Rect bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTreeHostMojo);
 };
 
 }  // namespace examples
 }  // namespace mojo
 
 #endif  // MOJO_EXAMPLES_AURA_DEMO_WINDOW_TREE_HOST_MOJO_H_