services/ui: Move some files into the client lib.

services/ui/common/gpu_service.cc

Index: services/ui/common/gpu_service.cc
diff --git a/services/ui/common/gpu_service.cc b/services/ui/common/gpu_service.cc
deleted file mode 100644
index 8856b7cca80ce62d00ea763537c22e668da7d231..0000000000000000000000000000000000000000
--- a/services/ui/common/gpu_service.cc
+++ /dev/null
@@ -1,226 +0,0 @@
-// 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 "services/ui/common/gpu_service.h"
-
-#include "base/command_line.h"
-#include "base/memory/singleton.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "build/build_config.h"
-#include "mojo/public/cpp/bindings/sync_call_restrictions.h"
-#include "mojo/public/cpp/system/platform_handle.h"
-#include "services/shell/public/cpp/connector.h"
-#include "services/ui/common/gpu_type_converters.h"
-#include "services/ui/common/mojo_gpu_memory_buffer_manager.h"
-#include "services/ui/common/switches.h"
-#include "services/ui/public/interfaces/gpu_service.mojom.h"
-
-namespace ui {
-
-namespace {
-
-void PostTask(scoped_refptr<base::SingleThreadTaskRunner> runner,
-              const tracked_objects::Location& from_here,
-              const gpu::GpuChannelEstablishedCallback& callback,
-              scoped_refptr<gpu::GpuChannelHost> established_channel_host) {
-  runner->PostTask(from_here,
-                   base::Bind(callback, std::move(established_channel_host)));
-}
-
-}
-
-GpuService::GpuService(shell::Connector* connector)
-    : main_task_runner_(base::ThreadTaskRunnerHandle::Get()),
-      connector_(connector),
-      shutdown_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
-                      base::WaitableEvent::InitialState::NOT_SIGNALED),
-      io_thread_("GPUIOThread"),
-      gpu_memory_buffer_manager_(new MojoGpuMemoryBufferManager),
-      is_establishing_(false),
-      establishing_condition_(&lock_) {
-  DCHECK(main_task_runner_);
-  DCHECK(connector_);
-  base::Thread::Options thread_options(base::MessageLoop::TYPE_IO, 0);
-  thread_options.priority = base::ThreadPriority::NORMAL;
-  CHECK(io_thread_.StartWithOptions(thread_options));
-}
-
-GpuService::~GpuService() {
-  DCHECK(IsMainThread());
-  if (gpu_channel_)
-    gpu_channel_->DestroyChannel();
-}
-
-// static
-std::unique_ptr<GpuService> GpuService::Initialize(
-    shell::Connector* connector) {
-  return base::WrapUnique(new GpuService(connector));
-}
-
-void GpuService::EstablishGpuChannel(
-    const gpu::GpuChannelEstablishedCallback& callback) {
-  base::AutoLock auto_lock(lock_);
-  auto runner = base::ThreadTaskRunnerHandle::Get();
-  scoped_refptr<gpu::GpuChannelHost> channel = GetGpuChannelLocked();
-  if (channel) {
-    PostTask(runner, FROM_HERE, callback, std::move(channel));
-    return;
-  }
-  establish_callbacks_.push_back(
-      base::Bind(PostTask, runner, FROM_HERE, callback));
-  if (!is_establishing_) {
-    is_establishing_ = true;
-    main_task_runner_->PostTask(
-        FROM_HERE, base::Bind(&GpuService::EstablishGpuChannelOnMainThread,
-                              base::Unretained(this)));
-  }
-}
-
-scoped_refptr<gpu::GpuChannelHost> GpuService::EstablishGpuChannelSync() {
-  base::AutoLock auto_lock(lock_);
-  if (GetGpuChannelLocked())
-    return gpu_channel_;
-
-  if (IsMainThread()) {
-    is_establishing_ = true;
-    EstablishGpuChannelOnMainThreadSyncLocked();
-  } else {
-    if (!is_establishing_) {
-      // Create an establishing gpu channel task, if there isn't one.
-      is_establishing_ = true;
-      main_task_runner_->PostTask(
-          FROM_HERE, base::Bind(&GpuService::EstablishGpuChannelOnMainThread,
-                                base::Unretained(this)));
-    }
-
-    // Wait until the pending establishing task is finished.
-    do {
-      establishing_condition_.Wait();
-    } while (is_establishing_);
-  }
-  return gpu_channel_;
-}
-
-scoped_refptr<gpu::GpuChannelHost> GpuService::GetGpuChannelLocked() {
-  if (gpu_channel_ && gpu_channel_->IsLost()) {
-    main_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&gpu::GpuChannelHost::DestroyChannel, gpu_channel_));
-    gpu_channel_ = nullptr;
-  }
-  return gpu_channel_;
-}
-
-void GpuService::EstablishGpuChannelOnMainThread() {
-  base::AutoLock auto_lock(lock_);
-  DCHECK(IsMainThread());
-
-  // In GpuService::EstablishGpuChannelOnMainThreadSyncLocked(), we use the sync
-  // mojo EstablishGpuChannel call, after that call the gpu_service_ will be
-  // reset immediatelly. So gpu_service_ should be always null here.
-  DCHECK(!gpu_service_);
-
-  // is_establishing_ is false, it means GpuService::EstablishGpuChannelSync()
-  // has been used, and we don't need try to establish a new GPU channel
-  // anymore.
-  if (!is_establishing_)
-    return;
-
-  connector_->ConnectToInterface("mojo:ui", &gpu_service_);
-  const bool locked = false;
-  gpu_service_->EstablishGpuChannel(
-      base::Bind(&GpuService::EstablishGpuChannelOnMainThreadDone,
-                 base::Unretained(this), locked));
-}
-
-void GpuService::EstablishGpuChannelOnMainThreadSyncLocked() {
-  DCHECK(IsMainThread());
-  DCHECK(is_establishing_);
-
-  // In browser process, EstablishGpuChannelSync() is only used by testing &
-  // GpuProcessTransportFactory::GetGLHelper(). For GetGLHelper(), it expects
-  // the gpu channel has been established, so it should not reach here.
-  // For testing, the  asyc method should not be used.
-  // In renderer process, we only use EstablishGpuChannelSync().
-  // So the gpu_service_ should be null here.
-  DCHECK(!gpu_service_);
-
-  int client_id = 0;
-  mojom::ChannelHandlePtr channel_handle;
-  mojom::GpuInfoPtr gpu_info;
-  connector_->ConnectToInterface("mojo:ui", &gpu_service_);
-  {
-    base::AutoUnlock auto_unlock(lock_);
-    mojo::SyncCallRestrictions::ScopedAllowSyncCall allow_sync_call;
-    if (!gpu_service_->EstablishGpuChannel(&client_id, &channel_handle,
-                                           &gpu_info)) {
-      DLOG(WARNING)
-          << "Channel encountered error while establishing gpu channel.";
-      return;
-    }
-  }
-  const bool locked = true;
-  EstablishGpuChannelOnMainThreadDone(
-      locked, client_id, std::move(channel_handle), std::move(gpu_info));
-}
-
-void GpuService::EstablishGpuChannelOnMainThreadDone(
-    bool locked,
-    int client_id,
-    mojom::ChannelHandlePtr channel_handle,
-    mojom::GpuInfoPtr gpu_info) {
-  DCHECK(IsMainThread());
-  scoped_refptr<gpu::GpuChannelHost> gpu_channel;
-  if (client_id) {
-    // TODO(penghuang): Get the real gpu info from mus.
-    gpu_channel = gpu::GpuChannelHost::Create(
-        this, client_id, gpu::GPUInfo(),
-        channel_handle.To<IPC::ChannelHandle>(), &shutdown_event_,
-        gpu_memory_buffer_manager_.get());
-  }
-
-  auto auto_lock = base::WrapUnique<base::AutoLock>(
-      locked ? nullptr : new base::AutoLock(lock_));
-  DCHECK(is_establishing_);
-  DCHECK(!gpu_channel_);
-
-  is_establishing_ = false;
-  gpu_channel_ = gpu_channel;
-  establishing_condition_.Broadcast();
-  gpu_service_.reset();
-
-  for (const auto& i : establish_callbacks_)
-    i.Run(gpu_channel_);
-  establish_callbacks_.clear();
-}
-
-bool GpuService::IsMainThread() {
-  return main_task_runner_->BelongsToCurrentThread();
-}
-
-scoped_refptr<base::SingleThreadTaskRunner>
-GpuService::GetIOThreadTaskRunner() {
-  return io_thread_.task_runner();
-}
-
-std::unique_ptr<base::SharedMemory> GpuService::AllocateSharedMemory(
-    size_t size) {
-  mojo::ScopedSharedBufferHandle handle =
-      mojo::SharedBufferHandle::Create(size);
-  if (!handle.is_valid())
-    return nullptr;
-
-  base::SharedMemoryHandle platform_handle;
-  size_t shared_memory_size;
-  bool readonly;
-  MojoResult result = mojo::UnwrapSharedMemoryHandle(
-      std::move(handle), &platform_handle, &shared_memory_size, &readonly);
-  if (result != MOJO_RESULT_OK)
-    return nullptr;
-  DCHECK_EQ(shared_memory_size, size);
-
-  return base::MakeUnique<base::SharedMemory>(platform_handle, readonly);
-}
-
-}  // namespace ui