chromeos: Makes mushrome use simplified display management

ash/mus/window_manager_application.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 "ash/mus/window_manager_application.h"
 
 #include <utility>
 
 #include "ash/mojo_interface_factory.h"
 #include "ash/mus/network_connect_delegate_mus.h"
 #include "ash/mus/window_manager.h"
 #include "ash/public/cpp/config.h"
+#include "ash/shell_delegate.h"
 #include "ash/system/power/power_status.h"
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chromeos/audio/cras_audio_handler.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/network/network_connect.h"
 #include "chromeos/network/network_handler.h"
 #include "chromeos/system/fake_statistics_provider.h"
 #include "device/bluetooth/bluetooth_adapter_factory.h"
 #include "device/bluetooth/dbus/bluez_dbus_manager.h"
 #include "services/service_manager/public/cpp/connector.h"
 #include "services/service_manager/public/cpp/service_context.h"
 #include "services/tracing/public/cpp/provider.h"
 #include "services/ui/common/accelerator_util.h"
 #include "ui/aura/env.h"
 #include "ui/aura/mus/window_tree_client.h"
 #include "ui/events/event.h"
 #include "ui/message_center/message_center.h"
 #include "ui/views/mus/aura_init.h"
 
 namespace ash {
 namespace mus {
 
-WindowManagerApplication::WindowManagerApplication() {}
+WindowManagerApplication::WindowManagerApplication(
+    bool show_primary_host_on_connect,
+    Config ash_config,
+    std::unique_ptr<ash::ShellDelegate> shell_delegate)
+    : show_primary_host_on_connect_(show_primary_host_on_connect),
+      shell_delegate_(std::move(shell_delegate)),
+      ash_config_(ash_config) {}
 
 WindowManagerApplication::~WindowManagerApplication() {
   // Destroy the WindowManager while still valid. This way we ensure
   // OnWillDestroyRootWindowController() is called (if it hasn't been already).
   window_manager_.reset();
 
   if (blocking_pool_) {
     // Like BrowserThreadImpl, the goal is to make it impossible for ash to
     // 'infinite loop' during shutdown, but to reasonably expect that all
     // BLOCKING_SHUTDOWN tasks queued during shutdown get run. There's nothing
     // particularly scientific about the number chosen.
     const int kMaxNewShutdownBlockingTasks = 1000;
     blocking_pool_->Shutdown(kMaxNewShutdownBlockingTasks);
   }
 
   statistics_provider_.reset();
   ShutdownComponents();
 }
 
+service_manager::Connector* WindowManagerApplication::GetConnector() {
+  return context() ? context()->connector() : nullptr;
+}
+
 void WindowManagerApplication::InitWindowManager(
     std::unique_ptr<aura::WindowTreeClient> window_tree_client,
     const scoped_refptr<base::SequencedWorkerPool>& blocking_pool,
     bool init_network_handler) {
   // Tests may have already set the WindowTreeClient.
   if (!aura::Env::GetInstance()->HasWindowTreeClient())
     aura::Env::GetInstance()->SetWindowTreeClient(window_tree_client.get());
   InitializeComponents(init_network_handler);
 
   // TODO(jamescook): Refactor StatisticsProvider so we can get just the data
   // we need in ash. Right now StatisticsProviderImpl launches the crossystem
   // binary to get system data, which we don't want to do twice on startup.
   statistics_provider_.reset(
       new chromeos::system::ScopedFakeStatisticsProvider());
   statistics_provider_->SetMachineStatistic("initial_locale", "en-US");
   statistics_provider_->SetMachineStatistic("keyboard_layout", "");
 
-  window_manager_->Init(std::move(window_tree_client), blocking_pool);
+  window_manager_->Init(std::move(window_tree_client), blocking_pool,
+                        std::move(shell_delegate_));
 }
 
 void WindowManagerApplication::InitializeComponents(bool init_network_handler) {
   message_center::MessageCenter::Initialize();
 
   // Must occur after mojo::ApplicationRunner has initialized AtExitManager, but
   // before WindowManager::Init().
   chromeos::DBusThreadManager::Initialize(
       chromeos::DBusThreadManager::PROCESS_ASH);
 
@@ skipping 24 matching lines @@
 }
 
 void WindowManagerApplication::OnStart() {
   mojo_interface_factory::RegisterInterfaces(
       &registry_, base::ThreadTaskRunnerHandle::Get());
 
   aura_init_ = base::MakeUnique<views::AuraInit>(
       context()->connector(), context()->identity(), "ash_mus_resources.pak",
       "ash_mus_resources_200.pak", nullptr,
       views::AuraInit::Mode::AURA_MUS_WINDOW_MANAGER);
-  window_manager_ =
-      base::MakeUnique<WindowManager>(context()->connector(), Config::MASH);
+  window_manager_ = base::MakeUnique<WindowManager>(
+      context()->connector(), ash_config_, show_primary_host_on_connect_);
 
   tracing_.Initialize(context()->connector(), context()->identity().name());
 
   std::unique_ptr<aura::WindowTreeClient> window_tree_client =
       base::MakeUnique<aura::WindowTreeClient>(
           context()->connector(), window_manager_.get(), window_manager_.get());
-  window_tree_client->ConnectAsWindowManager();
+  const bool automatically_create_display_roots =
+      window_manager_->config() == Config::MASH;
+  window_tree_client->ConnectAsWindowManager(
+      automatically_create_display_roots);
 
   const size_t kMaxNumberThreads = 3u;  // Matches that of content.
   const char kThreadNamePrefix[] = "MashBlocking";
   blocking_pool_ = new base::SequencedWorkerPool(
       kMaxNumberThreads, kThreadNamePrefix, base::TaskPriority::USER_VISIBLE);
   const bool init_network_handler = true;
   InitWindowManager(std::move(window_tree_client), blocking_pool_,
                     init_network_handler);
 }
 
 void WindowManagerApplication::OnBindInterface(
     const service_manager::ServiceInfo& source_info,
     const std::string& interface_name,
     mojo::ScopedMessagePipeHandle interface_pipe) {
   registry_.BindInterface(source_info.identity, interface_name,
                           std::move(interface_pipe));
 }
 
 }  // namespace mus
 }  // namespace ash