Notify WebWidget when its compositor surface is ready to use

content/renderer/render_widget_fullscreen_pepper.cc

 // 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.
 
 #include "content/renderer/render_widget_fullscreen_pepper.h"
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "content/common/view_messages.h"
@@ skipping 66 matching lines @@
   }
 
   virtual void paint(WebCanvas* canvas, const WebRect& rect) {
     if (!widget_->plugin())
       return;
 
     WebRect plugin_rect(0, 0, size_.width, size_.height);
     widget_->plugin()->Paint(canvas, plugin_rect, rect);
   }
 
+#if WEBWIDGET_HAS_SETCOMPOSITORSURFACEREADY
+  virtual void setCompositorSurfaceReady() {
+  }
+#endif
+
   virtual void composite(bool finish) {
     if (!widget_->plugin())
       return;
 
     WebGraphicsContext3DCommandBufferImpl* context = widget_->context();
     DCHECK(context);
     unsigned int texture = widget_->plugin()->GetBackingTextureId();
     context->bindTexture(GL_TEXTURE_2D, texture);
     context->drawArrays(GL_TRIANGLES, 0, 3);
     widget_->SwapBuffers();
@@ skipping 414 matching lines @@
 
 WebGraphicsContext3DCommandBufferImpl*
 RenderWidgetFullscreenPepper::GetParentContextForPlatformContext3D() {
   if (!context_) {
     CreateContext();
   }
   if (!context_)
     return NULL;
   return context_;
 }