Introduce Display Compositor mojo interface. Use InProcessContextProvider.

services/ui/surfaces/surfaces_context_provider.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 SERVICES_UI_SURFACES_SURFACES_CONTEXT_PROVIDER_H_
-#define SERVICES_UI_SURFACES_SURFACES_CONTEXT_PROVIDER_H_
-
-#include <stdint.h>
-
-#include <memory>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/threading/non_thread_safe.h"
-#include "cc/output/context_provider.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/gl/gl_surface.h"
-
-namespace base {
-class SingleThreadTaskRunner;
-}
-
-namespace gpu {
-
-class CommandBufferProxyImpl;
-class GpuChannelHost;
-struct GpuProcessHostedCALayerTreeParamsMac;
-class TransferBuffer;
-
-namespace gles2 {
-class GLES2CmdHelper;
-class GLES2Implementation;
-}
-
-}  // namespace gpu
-
-namespace ui {
-class LatencyInfo;
-}
-
-namespace ui {
-
-class CommandBufferDriver;
-class CommandBufferImpl;
-class SurfacesContextProviderDelegate;
-
-// TODO(fsamuel): This can probably be merged with ContextProviderCommandBuffer.
-class SurfacesContextProvider : public cc::ContextProvider,
-                                public base::NonThreadSafe {
- public:
-  SurfacesContextProvider(gfx::AcceleratedWidget widget,
-                          scoped_refptr<gpu::GpuChannelHost> gpu_channel);
-
-  void SetDelegate(SurfacesContextProviderDelegate* delegate);
-
-  // cc::ContextProvider implementation.
-  bool BindToCurrentThread() override;
-  gpu::gles2::GLES2Interface* ContextGL() override;
-  gpu::ContextSupport* ContextSupport() override;
-  class GrContext* GrContext() override;
-  cc::ContextCacheController* CacheController() override;
-  void InvalidateGrContext(uint32_t state) override;
-  gpu::Capabilities ContextCapabilities() override;
-  void SetLostContextCallback(
-      const LostContextCallback& lost_context_callback) override;
-  base::Lock* GetLock() override;
-
-  // SurfacesContextProvider API.
-  void SetSwapBuffersCompletionCallback(
-      gl::GLSurface::SwapCompletionCallback callback);
-
- protected:
-  friend class base::RefCountedThreadSafe<SurfacesContextProvider>;
-  ~SurfacesContextProvider() override;
-
- private:
-  // Callbacks for CommandBufferProxyImpl:
-  void OnGpuSwapBuffersCompleted(
-      const std::vector<ui::LatencyInfo>& latency_info,
-      gfx::SwapResult result,
-      const gpu::GpuProcessHostedCALayerTreeParamsMac* params_mac);
-  void OnUpdateVSyncParameters(base::TimeTicks timebase,
-                               base::TimeDelta interval);
-
-  // From GLES2Context:
-  // Initialized in BindToCurrentThread.
-  std::unique_ptr<gpu::gles2::GLES2CmdHelper> gles2_helper_;
-  std::unique_ptr<gpu::TransferBuffer> transfer_buffer_;
-  std::unique_ptr<gpu::gles2::GLES2Implementation> implementation_;
-  std::unique_ptr<cc::ContextCacheController> cache_controller_;
-
-  gpu::Capabilities capabilities_;
-  LostContextCallback lost_context_callback_;
-
-  SurfacesContextProviderDelegate* delegate_;
-  gfx::AcceleratedWidget widget_;
-  std::unique_ptr<gpu::CommandBufferProxyImpl> command_buffer_proxy_impl_;
-  gl::GLSurface::SwapCompletionCallback swap_buffers_completion_callback_;
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-
-  DISALLOW_COPY_AND_ASSIGN(SurfacesContextProvider);
-};
-
-}  // namespace ui
-
-#endif  // SERVICES_UI_SURFACES_SURFACES_CONTEXT_PROVIDER_H_