Wires up immersive mode for chrome and mash

ash/mus/bridge/immersive_handler_factory_mus.h

 // 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.
 
-#ifndef ASH_WM_IMMERSIVE_HANDLER_FACTORY_ASH_H_
-#define ASH_WM_IMMERSIVE_HANDLER_FACTORY_ASH_H_
+#ifndef ASH_MUS_BRIDGE_IMMERSIVE_HANDLER_FACTORY_MUS_H_
+#define ASH_MUS_BRIDGE_IMMERSIVE_HANDLER_FACTORY_MUS_H_
 
 #include "ash/shared/immersive_handler_factory.h"
 #include "base/macros.h"
 
 namespace ash {
+namespace mus {
 
-class ASH_EXPORT ImmersiveHandlerFactoryAsh : public ImmersiveHandlerFactory {
+class ImmersiveHandlerFactoryMus : public ImmersiveHandlerFactory {
  public:
-  ImmersiveHandlerFactoryAsh();
-  ~ImmersiveHandlerFactoryAsh() override;
+  ImmersiveHandlerFactoryMus();
+  ~ImmersiveHandlerFactoryMus() override;
 
   // ImmersiveHandlerFactory:
   std::unique_ptr<ImmersiveFocusWatcher> CreateFocusWatcher(
       ImmersiveFullscreenController* controller) override;
   std::unique_ptr<ImmersiveGestureHandler> CreateGestureHandler(
       ImmersiveFullscreenController* controller) override;
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(ImmersiveHandlerFactoryAsh);
+  DISALLOW_COPY_AND_ASSIGN(ImmersiveHandlerFactoryMus);
 };
 
+}  // namespace mus
 }  // namespace ash
 
-#endif  // ASH_WM_IMMERSIVE_HANDLER_FACTORY_ASH_H_
+#endif  // ASH_MUS_BRIDGE_IMMERSIVE_HANDLER_FACTORY_MUS_H_