Enables compositing support for webview.

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_BROWSER_PLUGIN_H_
 #define  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/process_util.h"
 #include "base/sequenced_task_runner_helpers.h"
 #if defined(OS_WIN)
 #include "base/shared_memory.h"
 #endif
 #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"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDragStatus.h"
 
 struct BrowserPluginHostMsg_AutoSize_Params;
 struct BrowserPluginHostMsg_ResizeGuest_Params;
 struct BrowserPluginMsg_LoadCommit_Params;
 struct BrowserPluginMsg_UpdateRect_Params;
 
 namespace content {
 
+class BrowserPluginCompositingHelper;
 class BrowserPluginManager;
 class MockBrowserPlugin;
 
 class CONTENT_EXPORT BrowserPlugin :
     NON_EXPORTED_BASE(public WebKit::WebPlugin) {
  public:
   RenderViewImpl* render_view() const { return render_view_.get(); }
 
   bool OnMessageReceived(const IPC::Message& msg);
 
@@ skipping 216 matching lines @@
   void OnLoadRedirect(int instance_id,
                       const GURL& old_url,
                       const GURL& new_url,
                       bool is_top_level);
   void OnLoadStart(int instance_id, const GURL& url, bool is_top_level);
   void OnLoadStop(int instance_id);
   void OnSetCursor(int instance_id, const WebCursor& cursor);
   void OnShouldAcceptTouchEvents(int instance_id, bool accept);
   void OnUpdateRect(int instance_id,
                     const BrowserPluginMsg_UpdateRect_Params& params);
+  void OnBuffersSwapped(int instance_id,

[Fady Samuel, 2013/01/09 21:23:38]

Alphabetical order.

+                        const gfx::Size& size,
+                        std::string mailbox_name,
+                        int gpu_route_id,
+                        int gpu_host_id);
 
   int instance_id_;
   base::WeakPtr<RenderViewImpl> render_view_;
   // We cache the |render_view_|'s routing ID because we need it on destruction.
   // If the |render_view_| is destroyed before the BrowserPlugin is destroyed
   // then we will attempt to access a NULL pointer.
   int render_view_routing_id_;
   WebKit::WebPluginContainer* container_;
   scoped_ptr<BrowserPluginBindings> bindings_;
   scoped_ptr<BrowserPluginBackingStore> backing_store_;
@@ skipping 43 matching lines @@
   // the embedder process. It should only be updated in response to navigation
   // events in the guest.  No assumptions should be made about how the index
   // will change after a navigation (e.g., for back, forward, or go), because
   // the changes are not always obvious.  For example, there is a maximum
   // number of entries and earlier ones will automatically be pruned.
   int current_nav_entry_index_;
   int nav_entry_count_;
 
   // Used for HW compositing.
   bool compositing_enabled_;
+  scoped_ptr<BrowserPluginCompositingHelper> compositing_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPlugin);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_