Texture provider to feed data to the impl side thread for webview compositing.

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_ResizeGuest_Params;
 struct BrowserPluginMsg_LoadCommit_Params;
 struct BrowserPluginMsg_UpdateRect_Params;
 
+namespace gfx {
+  class Size;
+}
+
 namespace content {
 
 class BrowserPluginManager;
+class BrowserPluginTextureProvider;
 class MockBrowserPlugin;
 
 class CONTENT_EXPORT BrowserPlugin :
     NON_EXPORTED_BASE(public WebKit::WebPlugin) {
  public:
   // Called only by tests to clean up before we blow away the MockRenderProcess.
   void Cleanup();
 
   // Get the src attribute value of the BrowserPlugin instance if the guest
   // has not crashed.
@@ skipping 65 matching lines @@
   // Tells the BrowserPlugin to tell the guest to navigate to a position
   // relative to the current index in its navigation history.
   void Go(int relativeIndex);
   // Tells the BrowserPlugin to terminate the guest process.
   void TerminateGuest();
 
   // A request from Javascript has been made to stop the loading of the page.
   void Stop();
   // A request from Javascript has been made to reload the page.
   void Reload();
+  // A request to enable hardware compositing.
+  void EnableCompositing();
+  // Initialized the texture provider used for compositing.
+  void InitializeTextureProvider();
+  // Provide HW compositing info if we have a context, reset otherwise.
+  void ProvideHWCompositingInfo(BrowserPluginHostMsg_ResizeGuest_Params*,
+                                WebGraphicsContext3DCommandBufferImpl*);
 
   // 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 bool canProcessDrag() const OVERRIDE;
   virtual void paint(
       WebKit::WebCanvas* canvas,
@@ skipping 121 matching lines @@
   // in the embedder process, at the risk of having incorrect information that
   // can lead to broken back/forward logic in apps.
   // It's also important that this state does not get modified by any logic in
   // 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.
+  BrowserPluginTextureProvider* provider_;
+  bool compositingPossible_;
+  bool compositingEnabled_;
   DISALLOW_COPY_AND_ASSIGN(BrowserPlugin);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_