Fixed bugs with Pepper 3D under dynamic GPU switching.

content/renderer/render_widget_fullscreen_pepper.h

 // Copyright (c) 2011 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_RENDER_WIDGET_FULLSCREEN_PEPPER_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_
 
 #include "base/memory/weak_ptr.h"
+#include "content/renderer/pepper_parent_context_provider.h"
 #include "content/renderer/render_widget_fullscreen.h"
 #include "content/renderer/gpu/renderer_gl_context.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebWidget.h"
 #include "webkit/plugins/ppapi/fullscreen_container.h"
 
 namespace webkit {
 namespace ppapi {
 
 class PluginInstance;
 
 }  // namespace ppapi
 }  // namespace webkit
 
 // A RenderWidget that hosts a fullscreen pepper plugin. This provides a
 // FullscreenContainer that the plugin instance can callback into to e.g.
 // invalidate rects.
 class RenderWidgetFullscreenPepper : public RenderWidgetFullscreen,
-                                     public webkit::ppapi::FullscreenContainer {
+                                     public webkit::ppapi::FullscreenContainer,
+                                     public PepperParentContextProvider {
  public:
   static RenderWidgetFullscreenPepper* Create(
       int32 opener_id,
       webkit::ppapi::PluginInstance* plugin,
       const GURL& active_url);
 
   // pepper::FullscreenContainer API.
   virtual void Invalidate();
   virtual void InvalidateRect(const WebKit::WebRect& rect);
   virtual void ScrollRect(int dx, int dy, const WebKit::WebRect& rect);
@@ skipping 42 matching lines @@
   // and notify the browser.
   bool CheckCompositing();
 
   // Called when the compositing context gets lost.
   void OnLostContext(RendererGLContext::ContextLostReason);
 
   // Binding of RendererGLContext swapbuffers callback to
   // RenderWidget::OnSwapBuffersCompleted.
   void OnSwapBuffersCompleteByRendererGLContext();
 
+  // Implementation of PepperParentContextProvider.
+  virtual RendererGLContext* GetParentContextForPlatformContext3D();
+
   // URL that is responsible for this widget, passed to ggl::CreateViewContext.
   GURL active_url_;
 
   // The plugin instance this widget wraps.
   webkit::ppapi::PluginInstance* plugin_;
 
   // GL context for compositing.
   RendererGLContext* context_;
   unsigned int buffer_;
   unsigned int program_;
 
   base::WeakPtrFactory<RenderWidgetFullscreenPepper> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetFullscreenPepper);
 };
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_