cc: Implement DelegatingRender::drawFrame() method.

ui/compositor/compositor.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 "ui/compositor/compositor.h"
 
 #include <algorithm>
 #include <deque>
 
 #include "base/bind.h"
@@ skipping 67 matching lines @@
 
   virtual WebKit::WebGraphicsContext3D* Context3D() const OVERRIDE {
     return context3D_.get();
   }
 
   virtual cc::SoftwareOutputDevice* SoftwareDevice() const OVERRIDE {
     return NULL;
   }
 
   virtual void SendFrameToParentCompositor(
-      const cc::CompositorFrame&) OVERRIDE {
+      cc::CompositorFrame&) OVERRIDE {
   }
 
  private:
   scoped_ptr<WebKit::WebGraphicsContext3D> context3D_;
   struct Capabilities capabilities_;
   cc::OutputSurfaceClient* client_;
 };
 
 class PendingSwap {
  public:
@@ skipping 506 matching lines @@
 
 COMPOSITOR_EXPORT void DisableTestCompositor() {
   test_compositor_enabled = false;
 }
 
 COMPOSITOR_EXPORT bool IsTestCompositorEnabled() {
   return test_compositor_enabled;
 }
 
 }  // namespace ui