blimp: Set up the CompositorDependencies for blimp in Chrome.

blimp/client/support/compositor/compositor_dependencies_impl.cc

 // Copyright 2016 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 "blimp/client/support/compositor/compositor_dependencies_impl.h"
 
 #include "blimp/client/support/compositor/blimp_context_provider.h"
 #include "blimp/client/support/compositor/blimp_gpu_memory_buffer_manager.h"
 #include "blimp/client/support/compositor/blimp_layer_tree_settings.h"
 #include "cc/output/context_provider.h"
@@ skipping 73 matching lines @@
 
 gpu::GpuMemoryBufferManager*
 CompositorDependenciesImpl::GetGpuMemoryBufferManager() {
   return gpu_memory_buffer_manager_.get();
 }
 
 cc::SurfaceManager* CompositorDependenciesImpl::GetSurfaceManager() {
   return surface_manager_.get();
 }
 
-uint32_t CompositorDependenciesImpl::AllocateSurfaceId() {
+uint32_t CompositorDependenciesImpl::AllocateSurfaceClientId() {
   return ++next_surface_id_;
 }
 
-void CompositorDependenciesImpl::GetContextProvider(
+void CompositorDependenciesImpl::GetContextProviders(
     const CompositorDependencies::ContextProviderCallback& callback) {
-  scoped_refptr<cc::ContextProvider> provider = BlimpContextProvider::Create(
-      gfx::kNullAcceleratedWidget, gpu_memory_buffer_manager_.get());
-  callback.Run(provider);
+  scoped_refptr<cc::ContextProvider> compositor_context =
+      BlimpContextProvider::Create(gfx::kNullAcceleratedWidget,
+                                   gpu_memory_buffer_manager_.get());
+
+  // TODO(khushalsagar): Make a worker context and bind to the current thread.
+  ContextProviders context_providers;
+  context_providers.compositor_context_provider = std::move(compositor_context);
+  callback.Run(context_providers);
 }
 
 }  // namespace client
 }  // namespace blimp