aura: Support SurfaceDestroyed() on Android

components/mus/ws/display_manager.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 COMPONENTS_MUS_WS_DISPLAY_MANAGER_H_
 #define COMPONENTS_MUS_WS_DISPLAY_MANAGER_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 107 matching lines @@
   // ui::PlatformWindowDelegate:
   void OnBoundsChanged(const gfx::Rect& new_bounds) override;
   void OnDamageRect(const gfx::Rect& damaged_region) override;
   void DispatchEvent(ui::Event* event) override;
   void OnCloseRequest() override;
   void OnClosed() override;
   void OnWindowStateChanged(ui::PlatformWindowState new_state) override;
   void OnLostCapture() override;
   void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget,
                                     float device_pixel_ratio) override;
+  void OnAcceleratedWidgetDestroyed() override;
   void OnActivationChanged(bool active) override;
 
   mojo::ApplicationImpl* app_impl_;
   scoped_refptr<GpuState> gpu_state_;
   scoped_refptr<SurfacesState> surfaces_state_;
   DisplayManagerDelegate* delegate_;
 
   mojom::ViewportMetrics metrics_;
   gfx::Rect dirty_rect_;
   base::Timer draw_timer_;
   bool frame_pending_;
 
   scoped_ptr<TopLevelDisplayClient> top_level_display_client_;
   scoped_ptr<ui::PlatformWindow> platform_window_;
 
   base::WeakPtrFactory<DefaultDisplayManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultDisplayManager);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_DISPLAY_MANAGER_H_