Move DIP translation from ui/aura to ui/compositor

ash/wm/shadow.h

 // Copyright (c) 2012 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_SHADOW_H_
 #define ASH_WM_SHADOW_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "ash/ash_export.h"
 #include "ui/gfx/compositor/layer_animation_observer.h"
 #include "ui/gfx/rect.h"
 
-namespace aura {
-class Window;
-}  // namespace aura
-
 namespace ui {
 class Layer;
 }  // namespace ui
 
 namespace ash {
 namespace internal {
 
 class ImageGrid;
 
 // Simple class that draws a drop shadow around content at given bounds.
 class ASH_EXPORT Shadow : public ui::ImplicitAnimationObserver {
  public:
   enum Style {
     // Active windows have more opaque shadows, shifted down to make the window
     // appear "higher".
     STYLE_ACTIVE,
 
     // Inactive windows have less opaque shadows.
     STYLE_INACTIVE,
 
     // Small windows like tooltips and context menus have lighter, smaller
     // shadows.
     STYLE_SMALL,
   };
 
   Shadow();
   virtual ~Shadow();
 
-  // |window| is a possibly-arbitrary window that is drawn at the same DPI
-  // (i.e. on the same monitor) as this shadow. The actual bounds for the
-  // shadow still has to be provided through |SetContentBounds()|.
-  // TODO(oshima): move scale factor to gfx/compositor and remove this.
-  void Init(aura::Window* window, Style style);
+  void Init(Style style);
 
   // Returns |image_grid_|'s ui::Layer.  This is exposed so it can be added to
   // the same layer as the content and stacked below it.  SetContentBounds()
   // should be used to adjust the shadow's size and position (rather than
   // applying transformations to this layer).
   ui::Layer* layer() const;
 
   const gfx::Rect& content_bounds() const { return content_bounds_; }
   Style style() const { return style_; }
 
@@ skipping 22 matching lines @@
   // Bounds of the content that the shadow encloses.
   gfx::Rect content_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(Shadow);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_SHADOW_H_