Cleanup: Remove unneeded headers from app/

app/animation_container.cc

 // Copyright (c) 2010 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 "app/animation_container.h"
 
-#include "app/animation.h"
-
 using base::TimeDelta;
 using base::TimeTicks;
 
 AnimationContainer::AnimationContainer()
     : last_tick_time_(TimeTicks::Now()),
       observer_(NULL) {
 }
 
 AnimationContainer::~AnimationContainer() {
   // The animations own us and stop themselves before being deleted. If
@@ skipping 71 matching lines @@
 
   TimeDelta min;
   Elements::const_iterator i = elements_.begin();
   min = (*i)->GetTimerInterval();
   for (++i; i != elements_.end(); ++i) {
     if ((*i)->GetTimerInterval() < min)
       min = (*i)->GetTimerInterval();
   }
   return min;
 }