core_services: Add mojo:surfaces_service to core_services.

components/surfaces/context_provider_mojo.cc

-// 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.
-
-#include "components/surfaces/context_provider_mojo.h"
-
-#include "base/logging.h"
-#include "third_party/mojo/src/mojo/public/cpp/environment/environment.h"
-
-namespace mojo {
-
-ContextProviderMojo::ContextProviderMojo(
-    ScopedMessagePipeHandle command_buffer_handle)
-    : command_buffer_handle_(command_buffer_handle.Pass()),
-      context_(nullptr),
-      context_lost_(false) {
-}
-
-bool ContextProviderMojo::BindToCurrentThread() {
-  DCHECK(command_buffer_handle_.is_valid());
-  context_ = MojoGLES2CreateContext(command_buffer_handle_.release().value(),
-                                    &ContextLostThunk, this,
-                                    Environment::GetDefaultAsyncWaiter());
-  DCHECK(context_);
-  return !!context_;
-}
-
-gpu::gles2::GLES2Interface* ContextProviderMojo::ContextGL() {
-  if (!context_)
-    return nullptr;
-  return static_cast<gpu::gles2::GLES2Interface*>(
-      MojoGLES2GetGLES2Interface(context_));
-}
-
-gpu::ContextSupport* ContextProviderMojo::ContextSupport() {
-  if (!context_)
-    return nullptr;
-  return static_cast<gpu::ContextSupport*>(
-      MojoGLES2GetContextSupport(context_));
-}
-
-class GrContext* ContextProviderMojo::GrContext() {
-  return NULL;
-}
-
-void ContextProviderMojo::InvalidateGrContext(uint32_t state) {
-}
-
-cc::ContextProvider::Capabilities ContextProviderMojo::ContextCapabilities() {
-  return capabilities_;
-}
-
-void ContextProviderMojo::SetupLock() {
-}
-
-base::Lock* ContextProviderMojo::GetLock() {
-  return &context_lock_;
-}
-
-bool ContextProviderMojo::IsContextLost() {
-  return context_lost_;
-}
-bool ContextProviderMojo::DestroyedOnMainThread() {
-  return !context_;
-}
-
-void ContextProviderMojo::SetLostContextCallback(
-    const LostContextCallback& lost_context_callback) {
-  lost_context_callback_ = lost_context_callback;
-}
-
-ContextProviderMojo::~ContextProviderMojo() {
-  if (context_)
-    MojoGLES2DestroyContext(context_);
-}
-
-void ContextProviderMojo::ContextLost() {
-  context_lost_ = true;
-  if (!lost_context_callback_.is_null())
-    lost_context_callback_.Run();
-}
-
-}  // namespace mojo