3D Compositing in <browser>, first draft.

content/renderer/browser_plugin/browser_plugin.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_RENDERER_BROWSER_PLUGIN_WEB_BROWSER_PLUGIN_H_
 #define  CONTENT_RENDERER_BROWSER_PLUGIN_WEB_BROWSER_PLUGIN_H_
 
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "content/renderer/browser_plugin/browser_plugin_backing_store.h"
 #include "content/renderer/browser_plugin/browser_plugin_bindings.h"
 #include "content/renderer/render_view_impl.h"
 
 struct BrowserPluginMsg_UpdateRect_Params;
+struct BrowserPlugin_SwapInfo;
 
 namespace content {
 namespace browser_plugin {
 
 class BrowserPluginManager;
 
 class BrowserPlugin : public WebKit::WebPlugin {
  public:
   void SetSrcAttribute(const std::string& src);
   void UpdateRect(int message_id,
                   const BrowserPluginMsg_UpdateRect_Params& params);
   void GuestCrashed();
   void UpdateURL(const GURL& url);
   void AdvanceFocus(bool reverse);
+  void BuffersSwapped(uint64 surface_handle, const BrowserPlugin_SwapInfo& info);
   void PostMessage(const std::string& message,
                    const std::string& target_origin);
+
+  void WillInitiatePaint();
+  void PerformBuffersSwappedACK(const BrowserPlugin_SwapInfo& info);
+
   // WebKit::WebPlugin implementation.
   virtual WebKit::WebPluginContainer* container() const OVERRIDE;
   virtual bool initialize(WebKit::WebPluginContainer* container) OVERRIDE;
   virtual void destroy() OVERRIDE;
   virtual NPObject* scriptableObject() OVERRIDE;
   virtual bool supportsKeyboardFocus() const OVERRIDE;
   virtual void paint(
       WebKit::WebCanvas* canvas,
       const WebKit::WebRect& rect) OVERRIDE;
   virtual void updateGeometry(
@@ skipping 43 matching lines @@
   WebKit::WebPluginContainer* container_;
   scoped_ptr<BrowserPluginBindings> bindings_;
   scoped_ptr<BrowserPluginBackingStore> backing_store_;
   TransportDIB* damage_buffer_;
   gfx::Rect plugin_rect_;
   // Bitmap for crashed plugin. Lazily initialized, non-owning pointer.
   SkBitmap* sad_guest_;
   bool guest_crashed_;
   long long parent_frame_;
   std::string src_;
+  std::vector< base::Callback<void(void)> > compositing_callbacks_;
   DISALLOW_COPY_AND_ASSIGN(BrowserPlugin);
 };
 
 }  // namespace browser_plugin
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_WEB_BROWSER_PLUGIN_H_