Removes WmRootWindowController subclasses

ash/mus/window_manager.h

 // 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.
 
 #ifndef ASH_MUS_WINDOW_MANAGER_H_
 #define ASH_MUS_WINDOW_MANAGER_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <set>
 
+#include "ash/root_window_controller.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
 #include "services/ui/common/types.h"
 #include "services/ui/public/interfaces/display/display_controller.mojom.h"
 #include "services/ui/public/interfaces/window_manager.mojom.h"
 #include "ui/aura/env_observer.h"
 #include "ui/aura/mus/window_manager_delegate.h"
 #include "ui/aura/mus/window_tree_client_delegate.h"
 
@@ skipping 97 matching lines @@
   // service_manager::Connector was available, for example in some tests.
   display::mojom::DisplayController* GetDisplayController();
 
  private:
   friend class WmTestHelper;
 
   using RootWindowControllers = std::set<std::unique_ptr<RootWindowController>>;
 
   RootWindowController* CreateRootWindowController(
       std::unique_ptr<aura::WindowTreeHostMus> window_tree_host,
-      const display::Display& display);
+      const display::Display& display,
+      ash::RootWindowController::RootWindowType root_window_type);
 
   // Deletes the specified RootWindowController. Called when a display is
   // removed.
   void DestroyRootWindowController(
       RootWindowController* root_window_controller);
 
   void Shutdown();
 
   RootWindowController* GetPrimaryRootWindowController();
 
@@ skipping 77 matching lines @@
 
   std::unique_ptr<ScreenPositionController> screen_position_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManager);
 };
 
 }  // namespace mus
 }  // namespace ash
 
 #endif  // ASH_MUS_WINDOW_MANAGER_H_