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

content/renderer/gpu/delegated_compositor_output_surface.cc

 // Copyright 2013 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/gpu/delegated_compositor_output_surface.h"
 #include "content/renderer/gpu/frame_swap_message_queue.h"
 
 namespace content {
 
 DelegatedCompositorOutputSurface::DelegatedCompositorOutputSurface(
     int32 routing_id,
     uint32 output_surface_id,
     const scoped_refptr<ContextProviderCommandBuffer>& context_provider,
+    const scoped_refptr<ContextProviderCommandBuffer>& worker_context_provider,
     scoped_refptr<FrameSwapMessageQueue> swap_frame_message_queue)
     : CompositorOutputSurface(routing_id,
                               output_surface_id,
                               context_provider,
+                              worker_context_provider,
                               scoped_ptr<cc::SoftwareOutputDevice>(),
                               swap_frame_message_queue,
                               true) {
   capabilities_.delegated_rendering = true;
   capabilities_.max_frames_pending = 1;
 }
 
 }  // namespace content