Re-land: cc: Implement shared worker contexts.

content/browser/android/in_process/synchronous_compositor_factory_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_FACTORY_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_FACTORY_IMPL_H_
 
 #include "base/synchronization/lock.h"
 #include "cc/blink/context_provider_web_context.h"
 #include "content/browser/android/in_process/synchronous_input_event_filter.h"
@@ skipping 10 matching lines @@
 class GLInProcessContext;
 }
 
 namespace gpu_blink {
 class WebGraphicsContext3DInProcessCommandBufferImpl;
 }
 
 namespace content {
 
 class InProcessChildThreadParams;
+class SynchronousCompositorContextProvider;
 
 class SynchronousCompositorFactoryImpl : public SynchronousCompositorFactory {
  public:
   SynchronousCompositorFactoryImpl();
   ~SynchronousCompositorFactoryImpl() override;
 
   // SynchronousCompositorFactory
   scoped_refptr<base::SingleThreadTaskRunner> GetCompositorTaskRunner()
       override;
   scoped_ptr<cc::OutputSurface> CreateOutputSurface(
@@ skipping 26 matching lines @@
       const InProcessChildThreadParams& params);
   void SetUseIpcCommandBuffer();
   void CompositorInitializedHardwareDraw();
   void CompositorReleasedHardwareDraw();
 
 
  private:
   scoped_refptr<cc::ContextProvider> CreateContextProviderForCompositor(
       int surface_id,
       CommandBufferContextType type);
+  scoped_refptr<cc::ContextProvider> GetSharedWorkerContextProvider();
   bool CanCreateMainThreadContext();
   scoped_refptr<StreamTextureFactorySynchronousImpl::ContextProvider>
       TryCreateStreamTextureFactory();
   void RestoreContextOnMainThread();
   scoped_refptr<gpu::InProcessCommandBuffer::Service> GpuThreadService();
 
   SynchronousInputEventFilter synchronous_input_event_filter_;
 
   scoped_refptr<gpu::InProcessCommandBuffer::Service> android_view_service_;
   scoped_refptr<gpu::InProcessCommandBuffer::Service> gpu_thread_service_;
 
   class VideoContextProvider;
   scoped_refptr<VideoContextProvider> video_context_provider_;
 
+  scoped_refptr<SynchronousCompositorContextProvider> shared_worker_context_;
+  scoped_refptr<cc_blink::ContextProviderWebContext>
+      in_process_shared_worker_context_;
+
   bool use_ipc_command_buffer_;
 
   // |num_hardware_compositor_lock_| is updated on UI thread only but can be
   // read on renderer main thread.
   base::Lock num_hardware_compositor_lock_;
   unsigned int num_hardware_compositors_;
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_FACTORY_IMPL_H_