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

content/browser/compositor/gpu_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/gpu_browser_compositor_output_surface.h"
 
 #include "cc/output/compositor_frame.h"
 #include "cc/output/output_surface_client.h"
 #include "content/browser/compositor/reflector_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
 #include "content/public/browser/browser_thread.h"
 #include "gpu/command_buffer/client/context_support.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 
 namespace content {
 
 GpuBrowserCompositorOutputSurface::GpuBrowserCompositorOutputSurface(
     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,
     scoped_ptr<cc::OverlayCandidateValidator> overlay_candidate_validator)
     : BrowserCompositorOutputSurface(context,
+                                     worker_context,
                                      surface_id,
                                      output_surface_map,
                                      vsync_manager),
 #if defined(OS_MACOSX)
       should_not_show_frames_(false),
 #endif
       swap_buffers_completion_callback_(
           base::Bind(&GpuBrowserCompositorOutputSurface::OnSwapBuffersCompleted,
                      base::Unretained(this))) {
   overlay_candidate_validator_ = overlay_candidate_validator.Pass();
@@ skipping 92 matching lines @@
   should_not_show_frames_ = true;
 }
 
 bool GpuBrowserCompositorOutputSurface::ShouldNotShowFramesAfterRecycle()
     const {
   return should_not_show_frames_;
 }
 #endif
 
 }  // namespace content