3D Compositing in <browser>, first draft.

content/browser/browser_plugin/browser_plugin_host_helper.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_BROWSER_PLUGIN_BROWSER_PLUGIN_HOST_HELPER_H__
 #define CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_HOST_HELPER_H__
 
 #include <string>
 
 #include "base/compiler_specific.h"
+#include "content/common/browser_plugin_info.h"
 #include "content/public/browser/render_view_host_observer.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_sync_message.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
 #include "ui/surface/transport_dib.h"
 #include "webkit/glue/webcursor.h"
 
 namespace gfx {
 class Size;
 }
 
+struct BrowserPlugin_SwapInfo;
 struct BrowserPluginHostMsg_ResizeGuest_Params;
 struct ViewHostMsg_UpdateRect_Params;
 
 namespace content {
 
 class BrowserPluginHost;
 
 // This class acts as a plumber helper for BrowserPluginHost. A lot
 // of messages coming from guests need to know the guest's RenderViewHost.
 // BrowserPluginHostHelper handles BrowserPluginHost messages and relays
 // them with their associated RenderViewHosts to BrowserPluginHost where they
 // will be handled.
 class BrowserPluginHostHelper : public RenderViewHostObserver {
  public:
   BrowserPluginHostHelper(BrowserPluginHost* browser_plugin_host,
-                          RenderViewHost* render_view_host);
+                          RenderViewHost* render_view_host,
+                          const BrowserPluginHostMsg_Surface_Params& params);
   virtual ~BrowserPluginHostHelper();
 
   // Make it public for sync IPCs.
   virtual bool Send(IPC::Message* message) OVERRIDE;
  private:
   void OnNavigateGuest(int instance_id,
-                                   long long frame_id,
-                                   const std::string& src,
-                                   const gfx::Size& size);
+                       long long frame_id,
+                       const std::string& src,
+                       const gfx::Size& size,
+                       const BrowserPluginHostMsg_Surface_Params& params);
+  void OnSwapBuffersACK(const BrowserPlugin_SwapInfo& info, uint32 sync_point);
   void OnResizeGuest(int instance_id,
                      const BrowserPluginHostMsg_ResizeGuest_Params& params);
   void OnUpdateRectACK(int instance_id,
                        int message_id,
                        const gfx::Size& size);
   void OnHandleInputEvent(const IPC::SyncMessage& message, bool* handled);
   void OnSetFocus(int instance_id, bool focused);
   void OnPluginDestroyed(int instance_id);
 
   // Intercepted from the guest renderer process.
   void OnUpdateRect(const ViewHostMsg_UpdateRect_Params& params);
   void OnHandleInputEventAck(WebKit::WebInputEvent::Type event_type,
                              bool processed);
   void OnTakeFocus(bool reverse);
   void OnShowWidget(int route_id, const gfx::Rect& initial_pos);
   void OnSetCursor(const WebCursor& cursor);
 
   // RenderViewHostObserver implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   BrowserPluginHost* browser_plugin_host_;
 
+  BrowserPluginHostMsg_Surface_Params surface_params_;
+
+  friend class BrowserPluginCompositingDelegate;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginHostHelper);
 };
 
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_OLD_BROWSER_PLUGIN_HOST_HELPER_H__