(not for commit) Create 2nd ContextProvider for Ganesh rasterization.

content/browser/compositor/browser_compositor_output_surface.h

 // Copyright 2014 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_BROWSER_COMPOSITOR_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
 #define CONTENT_BROWSER_COMPOSITOR_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
 
 #include "base/id_map.h"
 #include "base/threading/non_thread_safe.h"
 #include "cc/output/output_surface.h"
@@ skipping 31 matching lines @@
 #if defined(OS_MACOSX)
   virtual void OnSurfaceDisplayed() = 0;
   virtual void OnSurfaceRecycled() = 0;
   virtual bool ShouldNotShowFramesAfterRecycle() const = 0;
 #endif
 
  protected:
   // Constructor used by the accelerated implementation.
   BrowserCompositorOutputSurface(
       const scoped_refptr<ContextProviderCommandBuffer>& context,
+      const scoped_refptr<ContextProviderCommandBuffer>& worker_context,
       int surface_id,
       IDMap<BrowserCompositorOutputSurface>* output_surface_map,
       const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager);
 
   // Constructor used by the software implementation.
   BrowserCompositorOutputSurface(
       scoped_ptr<cc::SoftwareOutputDevice> software_device,
       int surface_id,
       IDMap<BrowserCompositorOutputSurface>* output_surface_map,
       const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager);
 
   int surface_id_;
   IDMap<BrowserCompositorOutputSurface>* output_surface_map_;
 
   scoped_refptr<ui::CompositorVSyncManager> vsync_manager_;
   scoped_refptr<ReflectorImpl> reflector_;
 
  private:
   void Initialize();
 
   DISALLOW_COPY_AND_ASSIGN(BrowserCompositorOutputSurface);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_COMPOSITOR_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_