chromeos: turn on simplified display management for mash

chrome/browser/chromeos/dbus/mus_console_service_provider_delegate.h

-// Copyright 2017 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.
-
-#ifndef CHROME_BROWSER_CHROMEOS_DBUS_MUS_CONSOLE_SERVICE_PROVIDER_DELEGATE_H_
-#define CHROME_BROWSER_CHROMEOS_DBUS_MUS_CONSOLE_SERVICE_PROVIDER_DELEGATE_H_
-
-#include "base/macros.h"
-#include "chromeos/dbus/services/console_service_provider.h"
-#include "services/ui/public/interfaces/display/display_controller.mojom.h"
-
-namespace chromeos {
-
-// An implementation of ConsoleServiceProvider::Delegate that communicates with
-// mus-ws via IPC.
-class MusConsoleServiceProviderDelegate
-    : public ConsoleServiceProvider::Delegate {
- public:
-  MusConsoleServiceProviderDelegate();
-  ~MusConsoleServiceProviderDelegate() override;
-
-  // ConsoleServiceProvider::Delegate overrides:
-  void TakeDisplayOwnership(const UpdateOwnershipCallback& callback) override;
-  void ReleaseDisplayOwnership(
-      const UpdateOwnershipCallback& callback) override;
-
- private:
-  void ConnectDisplayControllerIfNecessary();
-
-  // TODO(kylechar): Can we have one DisplayController for Chrome somewhere?
-  display::mojom::DisplayControllerPtr display_controller_;
-
-  DISALLOW_COPY_AND_ASSIGN(MusConsoleServiceProviderDelegate);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_DBUS_MUS_CONSOLE_SERVICE_PROVIDER_DELEGATE_H_