Update references to Blink's Platform API headers

cc/animation/layer_animation_controller.cc

 // Copyright 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 "cc/animation/layer_animation_controller.h"
 
 #include <algorithm>
 
 #include "cc/animation/animation.h"
 #include "cc/animation/animation_registrar.h"
 #include "cc/animation/keyframed_animation_curve.h"
 #include "cc/animation/layer_animation_value_observer.h"
 #include "cc/base/scoped_ptr_algorithm.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebAnimationDelegate.h"
+#include "third_party/WebKit/public/platform/WebAnimationDelegate.h"
 #include "ui/gfx/transform.h"
 
 namespace cc {
 
 LayerAnimationController::LayerAnimationController(int id)
     : force_sync_(false),
       registrar_(0),
       id_(id),
       is_active_(false),
       last_tick_time_(0),
@@ skipping 697 matching lines @@
         value_observers_);
     LayerAnimationValueObserver* obs;
     while ((obs = it.GetNext()) != NULL)
       if (obs->IsActive())
         return true;
   }
   return false;
 }
 
 }  // namespace cc