Introduce DisplayConfigurationController

ash/display/display_animator_chromeos.h

Index: ash/display/display_animator_chromeos.h
diff --git a/ash/display/display_animator.h b/ash/display/display_animator_chromeos.h
similarity index 64%
copy from ash/display/display_animator.h
copy to ash/display/display_animator_chromeos.h
index 81c60053d4aa92618f401c8d1b9f44be927b644b..a4fc768ff9ca32f659e54401c850e2756916e753 100644
--- a/ash/display/display_animator.h
+++ b/ash/display/display_animator_chromeos.h
@@ -2,12 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_DISPLAY_DISPLAY_ANIMATOR_H_
-#define ASH_DISPLAY_DISPLAY_ANIMATOR_H_
+#ifndef ASH_DISPLAY_DISPLAY_ANIMATOR_CHROMEOS_H_
+#define ASH_DISPLAY_DISPLAY_ANIMATOR_CHROMEOS_H_
 
 #include <map>
 
 #include "ash/ash_export.h"
+#include "ash/display/display_animator.h"
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
@@ -25,21 +26,19 @@ class Layer;
 
 namespace ash {
 
-// DisplayAnimator provides the visual effects for
+// DisplayAnimatorChromeOS provides the visual effects for
 // ui::DisplayConfigurator, such like fade-out/in during changing
 // the display mode.
-class ASH_EXPORT DisplayAnimator : public ui::DisplayConfigurator::Observer {
+class ASH_EXPORT DisplayAnimatorChromeOS
+    : public DisplayAnimator,
+      public ui::DisplayConfigurator::Observer {
  public:
-  DisplayAnimator();
-  ~DisplayAnimator() override;
+  DisplayAnimatorChromeOS();
+  ~DisplayAnimatorChromeOS() override;
 
-  // Starts the fade-out animation for the all root windows.  It will
-  // call |callback| once all of the animations have finished.
-  void StartFadeOutAnimation(base::Closure callback);
-
-  // Starts the animation to clear the fade-out animation effect
-  // for the all root windows.
-  void StartFadeInAnimation();
+  // DisplayAnimator
+  void StartFadeOutAnimation(base::Closure callback) override;
+  void StartFadeInAnimation() override;
 
  protected:
   // ui::DisplayConfigurator::Observer overrides:
@@ -57,11 +56,11 @@ class ASH_EXPORT DisplayAnimator : public ui::DisplayConfigurator::Observer {
 
   std::map<aura::Window*, ui::Layer*> hiding_layers_;
   scoped_ptr<base::OneShotTimer> timer_;
-  base::WeakPtrFactory<DisplayAnimator> weak_ptr_factory_;
+  base::WeakPtrFactory<DisplayAnimatorChromeOS> weak_ptr_factory_;
 
-  DISALLOW_COPY_AND_ASSIGN(DisplayAnimator);
+  DISALLOW_COPY_AND_ASSIGN(DisplayAnimatorChromeOS);
 };
 
 }  // namespace ash
 
-#endif  // ASH_DISPLAY_DISPLAY_ANIMATOR_H_
+#endif  // ASH_DISPLAY_DISPLAY_ANIMATOR_CHROMEOS_H_