Allow out-of-process iframes to render to compositing surfaces.

content/renderer/render_frame_proxy.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_RENDERER_RENDER_FRAME_PROXY_H_
 #define CONTENT_RENDERER_RENDER_FRAME_PROXY_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
 #include "third_party/WebKit/public/web/WebRemoteFrame.h"
 #include "third_party/WebKit/public/web/WebRemoteFrameClient.h"
 #include "url/origin.h"
 
 struct FrameMsg_BuffersSwapped_Params;
 struct FrameMsg_CompositorFrameSwapped_Params;
 
 namespace blink {
 class WebInputEvent;
 }
 
+namespace cc {
+struct SurfaceId;
+struct SurfaceSequence;
+}
+
 namespace content {
 
 class ChildFrameCompositingHelper;
 class RenderFrameImpl;
 class RenderViewImpl;
 enum class SandboxFlags;
 struct FrameReplicationState;
 
 // When a page's frames are rendered by multiple processes, each renderer has a
 // full copy of the frame tree. It has full RenderFrames for the frames it is
@@ skipping 100 matching lines @@
 
   void Init(blink::WebRemoteFrame* frame, RenderViewImpl* render_view);
 
   // IPC::Listener
   bool OnMessageReceived(const IPC::Message& msg) override;
 
   // IPC handlers
   void OnDeleteProxy();
   void OnChildFrameProcessGone();
   void OnCompositorFrameSwapped(const IPC::Message& message);
+  void OnSetChildFrameSurface(const cc::SurfaceId& surface_id,
+                              const gfx::Size& frame_size,
+                              float scale_factor,
+                              const cc::SurfaceSequence& sequence);
   void OnDisownOpener();
   void OnDidStopLoading();
   void OnDidUpdateSandboxFlags(SandboxFlags flags);
   void OnDispatchLoad();
   void OnDidUpdateName(const std::string& name);
   void OnDidUpdateOrigin(const url::Origin& origin);
 
   // The routing ID by which this RenderFrameProxy is known.
   const int routing_id_;
 
   // The routing ID of the local RenderFrame (if any) which this
   // RenderFrameProxy is meant to replace in the frame tree.
   const int frame_routing_id_;
 
   // Stores the WebRemoteFrame we are associated with.
   blink::WebRemoteFrame* web_frame_;
   scoped_refptr<ChildFrameCompositingHelper> compositing_helper_;
 
   RenderViewImpl* render_view_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameProxy);
 };
 
 }  // namespace
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_PROXY_H_