Use a bitfield to store animatable properties.

ash/wm/workspace_controller.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/workspace_controller.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
@@ skipping 109 matching lines @@
   // In order for pause to work we need to stop animations.
   viewport_->layer()->GetAnimator()->StopAnimating();
 
   {
     ui::ScopedLayerAnimationSettings settings(
         viewport_->layer()->GetAnimator());
 
     settings.SetPreemptionStrategy(ui::LayerAnimator::ENQUEUE_NEW_ANIMATION);
     viewport_->layer()->GetAnimator()->SchedulePauseForProperties(
         base::TimeDelta::FromMilliseconds(kInitialPauseTimeMS),
-        ui::LayerAnimationElement::TRANSFORM,
-        ui::LayerAnimationElement::OPACITY,
-        ui::LayerAnimationElement::BRIGHTNESS,
-        ui::LayerAnimationElement::VISIBILITY,
-        -1);
-
+        ui::LayerAnimationElement::TRANSFORM |
+            ui::LayerAnimationElement::OPACITY |
+            ui::LayerAnimationElement::BRIGHTNESS |
+            ui::LayerAnimationElement::VISIBILITY);
     settings.SetTweenType(gfx::Tween::EASE_OUT);
     settings.SetTransitionDuration(
         base::TimeDelta::FromMilliseconds(kCrossFadeDurationMS));
     viewport_->layer()->SetTransform(gfx::Transform());
     viewport_->layer()->SetOpacity(1.0f);
   }
 }
 
 }  // namespace internal
 }  // namespace ash