mus: Fix showing guest views in --mash and --mus.

content/browser/renderer_host/render_widget_host_view_base.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 28 matching lines @@
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/range/range.h"
 #include "ui/surface/transport_dib.h"
 
 class SkBitmap;
 
 struct ViewHostMsg_SelectionBounds_Params;
 
 namespace cc {
 struct BeginFrameAck;
+class SurfaceInfo;
 }  // namespace cc
 
 namespace media {
 class VideoFrame;
 }
 
 namespace blink {
 class WebMouseEvent;
 class WebMouseWheelEvent;
 }
@@ skipping 161 matching lines @@
   // This method is called by RenderWidgetHostImpl when a new
   // RendererCompositorFrameSink is created in the renderer. The view is
   // expected not to return resources belonging to the old
   // RendererCompositorFrameSink after this method finishes.
   virtual void DidCreateNewRendererCompositorFrameSink() = 0;
 
   virtual void SubmitCompositorFrame(const cc::LocalSurfaceId& local_surface_id,
                                      cc::CompositorFrame frame) = 0;
 
   virtual void OnBeginFrameDidNotSwap(const cc::BeginFrameAck& ack) {}
+  virtual void OnSurfaceChanged(const cc::SurfaceInfo& surface_info) {}
 
   // This method exists to allow removing of displayed graphics, after a new
   // page has been loaded, to prevent the displayed URL from being out of sync
   // with what is visible on screen.
   virtual void ClearCompositorFrame() = 0;
 
   // Because the associated remote WebKit instance can asynchronously
   // prevent-default on a dispatched touch event, the touch events are queued in
   // the GestureRecognizer until invocation of ProcessAckedTouchEvent releases
   // it to be consumed (when |ack_result| is NOT_CONSUMED OR NO_CONSUMER_EXISTS)
@@ skipping 221 matching lines @@
   base::ObserverList<RenderWidgetHostViewBaseObserver> observers_;
 
   base::WeakPtrFactory<RenderWidgetHostViewBase> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewBase);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_