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

content/renderer/browser_plugin/browser_plugin.h

Index: content/renderer/browser_plugin/browser_plugin.h
diff --git a/content/renderer/browser_plugin/browser_plugin.h b/content/renderer/browser_plugin/browser_plugin.h
index 5f5a8899b61a247b85001cd785e8300e5d34524f..363075086ced942784a9e672191a3871aa75a2dd 100644
--- a/content/renderer/browser_plugin/browser_plugin.h
+++ b/content/renderer/browser_plugin/browser_plugin.h
@@ -23,9 +23,14 @@ 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 :
@@ -111,6 +116,13 @@ class CONTENT_EXPORT BrowserPlugin :
   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;
@@ -252,6 +264,11 @@ class CONTENT_EXPORT BrowserPlugin :
   // 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);
 };