Use a bitfield to store animatable properties.

ui/views/corewm/window_animations.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 "ui/views/corewm/window_animations.h"
 
 #include <math.h>
 
 #include <algorithm>
 #include <vector>
@@ skipping 340 matching lines @@
 
 void AnimateBounce(aura::Window* window) {
   ui::ScopedLayerAnimationSettings scoped_settings(
       window->layer()->GetAnimator());
   scoped_settings.SetPreemptionStrategy(
       ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
   window->layer()->set_delegate(window);
   scoped_ptr<ui::LayerAnimationSequence> sequence(
       new ui::LayerAnimationSequence);
   sequence->AddElement(CreateGrowShrinkElement(window, true));
-  ui::LayerAnimationElement::AnimatableProperties paused_properties;
-  paused_properties.insert(ui::LayerAnimationElement::BOUNDS);
   sequence->AddElement(ui::LayerAnimationElement::CreatePauseElement(
-      paused_properties,
+      ui::LayerAnimationElement::BOUNDS,
       base::TimeDelta::FromMilliseconds(
         kWindowAnimation_Bounce_DurationMS *
             (100 - 2 * kWindowAnimation_Bounce_GrowShrinkDurationPercent) /
             100)));
   sequence->AddElement(CreateGrowShrinkElement(window, false));
   window->layer()->GetAnimator()->StartAnimation(sequence.release());
 }
 
 void AddLayerAnimationsForRotate(aura::Window* window, bool show) {
   window->layer()->set_delegate(window);
   if (show)
     window->layer()->SetOpacity(kWindowAnimation_HideOpacity);
 
   base::TimeDelta duration = base::TimeDelta::FromMilliseconds(
       kWindowAnimation_Rotate_DurationMS);
 
   if (!show) {
     new HidingWindowAnimationObserver(window);
     window->layer()->GetAnimator()->SchedulePauseForProperties(
         duration * (100 - kWindowAnimation_Rotate_OpacityDurationPercent) / 100,
-        ui::LayerAnimationElement::OPACITY,
-        -1);
+        ui::LayerAnimationElement::OPACITY);
   }
   scoped_ptr<ui::LayerAnimationElement> opacity(
       ui::LayerAnimationElement::CreateOpacityElement(
           show ? kWindowAnimation_ShowOpacity : kWindowAnimation_HideOpacity,
           duration * kWindowAnimation_Rotate_OpacityDurationPercent / 100));
   opacity->set_tween_type(gfx::Tween::EASE_IN_OUT);
   window->layer()->GetAnimator()->ScheduleAnimation(
       new ui::LayerAnimationSequence(opacity.release()));
 
   float xcenter = window->bounds().width() * 0.5;
@@ skipping 167 matching lines @@
 
 bool WindowAnimationsDisabled(aura::Window* window) {
   return (window &&
           window->GetProperty(aura::client::kAnimationsDisabledKey)) ||
       CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kWindowAnimationsDisabled);
 }
 
 }  // namespace corewm
 }  // namespace views