Move view logic from FocusRingLayer to FocusRingController.

chrome/browser/chromeos/ui/focus_ring_controller.h

 // Copyright 2013 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_UI_FOCUS_RING_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_UI_FOCUS_RING_CONTROLLER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
+#include "chrome/browser/chromeos/ui/focus_ring_layer.h"
 #include "ui/views/focus/focus_manager.h"
 #include "ui/views/focus/widget_focus_manager.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace views {
 class View;
 class Widget;
 }
 
 namespace chromeos {
 
-class FocusRingLayer;
-
 // FocusRingController manages the focus ring around the focused view. It
 // follows widget focus change and update the focus ring layer when the focused
 // view of the widget changes.
-class FocusRingController : public views::WidgetObserver,
+class FocusRingController : public FocusRingLayerDelegate,
+                            public views::WidgetObserver,
                             public views::WidgetFocusChangeListener,
                             public views::FocusChangeListener {
  public:
   FocusRingController();
   virtual ~FocusRingController();
 
   // Turns on/off the focus ring.
   void SetVisible(bool visible);
 
  private:
+  // FocusRingLayerDelegate.
+  virtual void OnDeviceScaleFactorChanged() OVERRIDE;
+
   // Sets the focused |widget|.
   void SetWidget(views::Widget* widget);
 
   // Updates the focus ring to the focused view of |widget_|. If |widget_| is
   // NULL or has no focused view, removes the focus ring. Otherwise, draws it.
   void UpdateFocusRing();
 
   // views::WidgetObserver overrides:
   virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
   virtual void OnWidgetBoundsChanged(views::Widget* widget,
@@ skipping 13 matching lines @@
 
   views::Widget* widget_;
   scoped_ptr<FocusRingLayer> focus_ring_layer_;
 
   DISALLOW_COPY_AND_ASSIGN(FocusRingController);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_UI_FOCUS_RING_CONTROLLER_H_