gpu: Introduce GpuInit.

services/ui/gpu/gpu_main.cc

+// 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/gpu/gpu_main.h"
+
+#include "base/command_line.h"
+#include "services/ui/gpu/gpu_service_internal.h"
+
+namespace ui {
+
+GpuMain::GpuMain() : gpu_init_(this, *base::CommandLine::ForCurrentProcess()) {
+  DCHECK(gpu_service_internal_);
+}
+
+GpuMain::~GpuMain() {}
+
+void GpuMain::Add(mojom::GpuServiceInternalRequest request) {
+  gpu_service_internal_->Add(std::move(request));
+}
+
+void GpuMain::OnGpuInfoUpdate(const gpu::GPUInfo& gpu_info) {
+  gpu_info_ = gpu_info;
+}
+
+void GpuMain::OnGpuWatchdogThreadCreated(gpu::GpuWatchdogThread* thread) {
+  watchdog_thread_ = thread;
+}
+
+void GpuMain::OnGpuWatchdogThreadDestroyed() {
+  watchdog_thread_ = nullptr;
+}
+
+bool GpuMain::ShouldInitializeGL() {
+  // TODO(sad): GL is currently initialized by WS. Once the gpu moves into a
+  // separate process, this should return true.
+  return false;
+}
+
+void GpuMain::WaitForDebugger() {
+  NOTIMPLEMENTED();
+}
+
+void GpuMain::PreSandboxInitialization() {}
+
+bool GpuMain::ShouldStartSandboxEarly() {
+  return false;
+}
+
+void GpuMain::WarmUpSandbox() {}
+
+bool GpuMain::StartSandbox() {
+  return true;
+}
+
+void GpuMain::InitializeMessageLoop() {}
+
+void GpuMain::Initialize(base::Time start_time,
+                         bool dead_on_arrival,
+                         std::vector<gpu::GpuInitLogMessage> int_log_messages,
+                         gpu::GpuMemoryBufferFactory* gpu_buffer_factory) {
+  gpu_service_internal_.reset(
+      new GpuServiceInternal(watchdog_thread_, gpu_buffer_factory));
+}
+
+}  // namespace ui