mus::GpuService: Support establish GpuChannel asynchronously.

mash/app_driver/app_driver.cc

 // Copyright 2015 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 "mash/app_driver/app_driver.h"
 
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "components/mus/common/event_matcher_util.h"
+#include "components/mus/common/gpu_service.h"
 #include "mash/public/interfaces/launchable.mojom.h"
 #include "services/shell/public/cpp/connection.h"
 #include "services/shell/public/cpp/connector.h"
 
 using mash::mojom::LaunchablePtr;
 using mash::mojom::LaunchMode;
 
 namespace mash {
 namespace app_driver {
 namespace {
@@ skipping 60 matching lines @@
         static_cast<uint32_t>(spec.id),
         mus::CreateKeyMatcher(spec.keyboard_code, spec.event_flags),
         base::Bind(&AssertTrue));
   }
 }
 
 void AppDriver::Initialize(shell::Connector* connector,
                            const shell::Identity& identity,
                            uint32_t id) {
   connector_ = connector;
+  mus::GpuService::Initialize(connector);
   AddAccelerators();
 }
 
 bool AppDriver::AcceptConnection(shell::Connection* connection) {
   return true;
 }
 
 bool AppDriver::ShellConnectionLost() {
   // Prevent the code in AddAccelerators() from keeping this app alive.
   binding_.set_connection_error_handler(base::Bind(&DoNothing));
@@ skipping 28 matching lines @@
 
 void AppDriver::AddAccelerators() {
   connector_->ConnectToInterface("mojo:catalog", &catalog_);
   catalog_->GetEntriesProvidingClass(
       "mus:window_manager", base::Bind(&AppDriver::OnAvailableCatalogEntries,
                                        weak_factory_.GetWeakPtr()));
 }
 
 }  // namespace app_driver
 }  // namespace mash