gpu: Move buffer format to target texture map into gpu host.

ui/aura/mus/mus_context_factory.cc

 // Copyright 2015 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 "ui/aura/mus/mus_context_factory.h"
 
 #include "base/memory/ptr_util.h"
 #include "services/ui/public/cpp/context_provider.h"
 #include "services/ui/public/cpp/gpu/gpu.h"
 #include "ui/aura/mus/window_port_mus.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/gl/gl_bindings.h"
 
 namespace aura {
-namespace {
-
-
-}  // namespace
 
 MusContextFactory::MusContextFactory(ui::Gpu* gpu) : gpu_(gpu) {}
 
 MusContextFactory::~MusContextFactory() {}
 
 void MusContextFactory::CreateCompositorFrameSink(
     base::WeakPtr<ui::Compositor> compositor) {
   WindowTreeHost* host =
       WindowTreeHost::GetForAcceleratedWidget(compositor->widget());
   WindowPortMus* window_port = WindowPortMus::Get(host->window());
@@ skipping 15 matching lines @@
 void MusContextFactory::RemoveCompositor(ui::Compositor* compositor) {
   // NOTIMPLEMENTED();
 }
 
 bool MusContextFactory::DoesCreateTestContexts() {
   return false;
 }
 
 uint32_t MusContextFactory::GetImageTextureTarget(gfx::BufferFormat format,
                                                   gfx::BufferUsage usage) {
-  // No GpuMemoryBuffer support, so just return GL_TEXTURE_2D.
+  // TODO(sad): http://crbug.com/675431
   return GL_TEXTURE_2D;
 }
 
 gpu::GpuMemoryBufferManager* MusContextFactory::GetGpuMemoryBufferManager() {
   return gpu_->gpu_memory_buffer_manager();
 }
 
 cc::TaskGraphRunner* MusContextFactory::GetTaskGraphRunner() {
   return raster_thread_helper_.task_graph_runner();
 }
 
 }  // namespace aura