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

content/browser/compositor/gpu_surfaceless_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_surfaceless_browser_compositor_output_surface.h"
 
 #include "cc/output/compositor_frame.h"
 #include "content/browser/compositor/buffer_queue.h"
 #include "content/browser/compositor/reflector_impl.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
 #include "content/common/gpu/client/gl_helper.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 
 namespace content {
 
 GpuSurfacelessBrowserCompositorOutputSurface::
     GpuSurfacelessBrowserCompositorOutputSurface(
         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,
         unsigned internalformat,
         bool use_own_gl_helper,
         BrowserGpuMemoryBufferManager* gpu_memory_buffer_manager)
     : GpuBrowserCompositorOutputSurface(context,
+                                        worker_context,
                                         surface_id,
                                         output_surface_map,
                                         vsync_manager,
                                         overlay_candidate_validator.Pass()),
       internalformat_(internalformat),
       use_own_gl_helper_(use_own_gl_helper),
       gpu_memory_buffer_manager_(gpu_memory_buffer_manager) {
   capabilities_.uses_default_gl_framebuffer = false;
   capabilities_.flipped_output_surface = true;
 }
@@ skipping 58 matching lines @@
   if (!helper)
     return false;
 
   output_surface_.reset(new BufferQueue(context_provider_, internalformat_,
                                         helper, gpu_memory_buffer_manager_,
                                         surface_id_));
   return output_surface_->Initialize();
 }
 
 }  // namespace content