Converts ash to use aura-mus

ash/mus/frame/detached_title_area_renderer.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_MUS_FRAME_DETACHED_TITLE_AREA_RENDERER_H_
 #define ASH_MUS_FRAME_DETACHED_TITLE_AREA_RENDERER_H_
 
 #include "base/macros.h"
 #include "ui/views/widget/widget_delegate.h"
 
-namespace ui {
-class Window;
-}
-
 namespace ash {
 namespace mus {
 
 class DetachedTitleAreaRendererHost;
 
 // DetachedTitleAreaRenderer contains a HeaderView in a widget. It's intended to
 // be used when the title area needs to be rendered in a window different from
 // the normal window the title area renders to (such as in immersive mode).
 class DetachedTitleAreaRenderer : public views::WidgetDelegate {
  public:
   // Used to indicate why this is being created.
   enum class Source {
     // This is being created at the request of a client, specifically because
     // of kRendererParentTitleArea_Property set on a client owned window.
     CLIENT,
 
     // Mash is creating this class to host an immersive reveal. Note that CLIENT
     // is also likely used for an immersive reveal, but for CLIENT the client
     // is completely controlling the reveal and not mash. In other words for
     // CLIENT ImmersiveFullscreenController is not running in mash.
     MASH,
   };
 
-  // Creates a widget to render the title area and shows it. |window| is the
-  // window to render to and |widget| the widget whose frame state is rendered
-  // to |window|. This object is deleted either when |window| is destroyed, or
-  // Destroy() is called.
+  // Creates a widget to render the title area and shows it. |frame| is the
+  // widget whose frame state is rendered to. This object is deleted explicitly
+  // by calling Destroy().
   DetachedTitleAreaRenderer(DetachedTitleAreaRendererHost* host,
                             views::Widget* frame,
-                            ui::Window* window,
+                            const gfx::Rect& bounds,
                             Source source);
 
   void Destroy();
 
   views::Widget* widget() { return widget_; }
 
   // views::WidgetDelegate:
   views::Widget* GetWidget() override;
   const views::Widget* GetWidget() const override;
   void DeleteDelegate() override;
 
  private:
   ~DetachedTitleAreaRenderer() override;
 
   DetachedTitleAreaRendererHost* host_;
   views::Widget* frame_;
   views::Widget* widget_;
 
   DISALLOW_COPY_AND_ASSIGN(DetachedTitleAreaRenderer);
 };
 
 }  // namespace mus
 }  // namespace ash
 
 #endif  // ASH_MUS_FRAME_DETACHED_TITLE_AREA_RENDERER_H_