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

content/browser/compositor/browser_compositor_output_surface.cc

 // 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.
 
 #include "content/browser/compositor/browser_compositor_output_surface.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/strings/string_number_conversions.h"
 #include "content/browser/compositor/reflector_impl.h"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
 
 namespace content {
 
 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
     const scoped_refptr<ContextProviderCommandBuffer>& context_provider,
+    const scoped_refptr<ContextProviderCommandBuffer>& worker_context_provider,
     int surface_id,
     IDMap<BrowserCompositorOutputSurface>* output_surface_map,
     const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
-    : OutputSurface(context_provider),
+    : OutputSurface(context_provider, worker_context_provider),
       surface_id_(surface_id),
       output_surface_map_(output_surface_map),
       vsync_manager_(vsync_manager) {
   Initialize();
 }
 
 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
     scoped_ptr<cc::SoftwareOutputDevice> software_device,
     int surface_id,
     IDMap<BrowserCompositorOutputSurface>* output_surface_map,
@@ skipping 51 matching lines @@
   DCHECK(CalledOnValidThread());
   DCHECK(HasClient());
   vsync_manager_->UpdateVSyncParameters(timebase, interval);
 }
 
 void BrowserCompositorOutputSurface::SetReflector(ReflectorImpl* reflector) {
   reflector_ = reflector;
 }
 
 }  // namespace content