Remove unused ColoredWindowController/DesktopBackgroundFadeController

ash/wm/session_state_animator.cc

 // 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.
 
 #include "ash/wm/session_state_animator.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/window_animations.h"
 #include "ui/aura/client/aura_constants.h"
@@ skipping 595 matching lines @@
       StartGrayscaleBrightnessAnimationForWindow(
           window, 1.0, duration, gfx::Tween::EASE_IN, observer);
       break;
     case ANIMATION_UNDO_GRAYSCALE_BRIGHTNESS:
       StartGrayscaleBrightnessAnimationForWindow(
           window, 0.0, duration, gfx::Tween::EASE_IN_OUT, observer);
       break;
   }
 }
 
-void SessionStateAnimator::CreateForeground() {
-  if (foreground_)
-    return;
-  aura::Window* window = Shell::GetContainer(
-      Shell::GetPrimaryRootWindow(),
-      internal::kShellWindowId_PowerButtonAnimationContainer);
-  HideWindowImmediately(window, NULL);
-  foreground_.reset(
-      new ColoredWindowController(window, "SessionStateAnimatorForeground"));
-  foreground_->SetColor(SK_ColorWHITE);
-  foreground_->GetWidget()->Show();
-}
-
-void SessionStateAnimator::DropForeground() {
-  foreground_.reset();
-}
-
 }  // namespace internal
 }  // namespace ash