Template methods on Timer classes instead of the classes themselves.

ui/gfx/animation/animation_container.h

 // Copyright (c) 2011 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_GFX_ANIMATION_ANIMATION_CONTAINER_H_
 #define UI_GFX_ANIMATION_ANIMATION_CONTAINER_H_
 
 #include <set>
 
 #include "base/memory/ref_counted.h"
@@ skipping 61 matching lines @@
   //   fired this is the time the animation was added.
   // . The time the last animation ran at (::Run was invoked).
   base::TimeTicks last_tick_time_;
 
   // Set of elements (animations) being managed.
   Elements elements_;
 
   // Minimum interval the timers run at.
   base::TimeDelta min_timer_interval_;
 
-  base::RepeatingTimer<AnimationContainer> timer_;
+  base::RepeatingTimer timer_;
 
   AnimationContainerObserver* observer_;
 
   DISALLOW_COPY_AND_ASSIGN(AnimationContainer);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_ANIMATION_ANIMATION_CONTAINER_H_