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

content/browser/frame_host/render_widget_host_view_child_frame.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 CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 93 matching lines @@
                          int error_code) override;
   void Destroy() override;
   void SetTooltipText(const base::string16& tooltip_text) override;
   bool HasAcceleratedSurface(const gfx::Size& desired_size) override;
   void GestureEventAck(const blink::WebGestureEvent& event,
                        InputEventAckState ack_result) override;
   void DidCreateNewRendererCompositorFrameSink() override;
   void SubmitCompositorFrame(const cc::LocalSurfaceId& local_surface_id,
                              cc::CompositorFrame frame) override;
   void OnBeginFrameDidNotSwap(const cc::BeginFrameAck& ack) override;
+  void OnSurfaceChanged(const cc::SurfaceInfo& surface_info) override;
   // Since the URL of content rendered by this class is not displayed in
   // the URL bar, this method does not need an implementation.
   void ClearCompositorFrame() override {}
   gfx::Rect GetBoundsInRootWindow() override;
   void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
                               InputEventAckState ack_result) override;
   bool LockMouse() override;
   void UnlockMouse() override;
   cc::FrameSinkId GetFrameSinkId() override;
   void ProcessKeyboardEvent(const NativeWebKeyboardEvent& event) override;
@@ skipping 135 matching lines @@
   // The background color of the widget.
   SkColor background_color_;
 
   base::WeakPtrFactory<RenderWidgetHostViewChildFrame> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewChildFrame);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_