ash: Improved window maximize/restore animations

ui/compositor/layer_animator.h

 // 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.
 
 #ifndef UI_COMPOSITOR_LAYER_ANIMATOR_H_
 #define UI_COMPOSITOR_LAYER_ANIMATOR_H_
 #pragma once
 
 #include <deque>
 #include <vector>
@@ skipping 126 matching lines @@
 
   // When set to true, all animations complete immediately.
   static void set_disable_animations_for_test(bool disable_animations) {
     disable_animations_for_test_ = disable_animations;
   }
 
   static bool disable_animations_for_test() {
     return disable_animations_for_test_;
   }
 
+  // Set |time_scale| > 1 to slow down animations for visual testing.
+  static void set_time_scale_for_test(int time_scale) {
+    time_scale_for_test_ = time_scale;
+  }
+
  protected:
   LayerAnimationDelegate* delegate() { return delegate_; }
   const LayerAnimationDelegate* delegate() const { return delegate_; }
 
   // Virtual for testing.
   virtual bool ProgressAnimation(LayerAnimationSequence* sequence,
                                  base::TimeDelta delta);
 
   // Returns true if the sequence is owned by this animator.
   bool HasAnimation(LayerAnimationSequence* sequence) const;
@@ skipping 107 matching lines @@
   // True if we are being stepped by our container.
   bool is_started_;
 
   // This prevents the animator from automatically stepping through animations
   // and allows for manual stepping.
   bool disable_timer_for_test_;
 
   // This causes all animations to complete immediately.
   static bool disable_animations_for_test_;
 
+  // Scales all animation durations by this factor.
+  static int time_scale_for_test_;
+
   // Observers are notified when layer animations end, are scheduled or are
   // aborted.
   ObserverList<LayerAnimationObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerAnimator);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_LAYER_ANIMATOR_H_