core_services: Add mojo:surfaces_service to core_services.

components/surfaces/context_provider_mojo.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 COMPONENTS_SURFACES_CONTEXT_PROVIDER_MOJO_H_
-#define COMPONENTS_SURFACES_CONTEXT_PROVIDER_MOJO_H_
-
-#include "base/macros.h"
-#include "base/synchronization/lock.h"
-#include "cc/output/context_provider.h"
-#include "third_party/mojo/src/mojo/public/c/gles2/gles2.h"
-#include "third_party/mojo/src/mojo/public/cpp/system/core.h"
-
-namespace mojo {
-
-class ContextProviderMojo : public cc::ContextProvider {
- public:
-  explicit ContextProviderMojo(ScopedMessagePipeHandle command_buffer_handle);
-
-  // cc::ContextProvider implementation.
-  bool BindToCurrentThread() override;
-  gpu::gles2::GLES2Interface* ContextGL() override;
-  gpu::ContextSupport* ContextSupport() override;
-  class GrContext* GrContext() override;
-  void InvalidateGrContext(uint32_t state) override;
-  Capabilities ContextCapabilities() override;
-  bool IsContextLost() override;
-  void VerifyContexts() override {}
-  void DeleteCachedResources() override {}
-  bool DestroyedOnMainThread() override;
-  void SetLostContextCallback(
-      const LostContextCallback& lost_context_callback) override;
-  void SetMemoryPolicyChangedCallback(
-      const MemoryPolicyChangedCallback& memory_policy_changed_callback)
-      override {}
-  void SetupLock() override;
-  base::Lock* GetLock() override;
-
- protected:
-  friend class base::RefCountedThreadSafe<ContextProviderMojo>;
-  ~ContextProviderMojo() override;
-
- private:
-  static void ContextLostThunk(void* closure) {
-    static_cast<ContextProviderMojo*>(closure)->ContextLost();
-  }
-  void ContextLost();
-
-  cc::ContextProvider::Capabilities capabilities_;
-  ScopedMessagePipeHandle command_buffer_handle_;
-  MojoGLES2Context context_;
-  bool context_lost_;
-  LostContextCallback lost_context_callback_;
-
-  base::Lock context_lock_;
-
-  DISALLOW_COPY_AND_ASSIGN(ContextProviderMojo);
-};
-
-}  // namespace mojo
-
-#endif  // COMPONENTS_SURFACES_CONTEXT_PROVIDER_MOJO_H_