Web Animations: Remove confusing interpolation subdirectory.

Source/core/animation/SampledEffect.cpp

 // Copyright 2014 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 "config.h"
 #include "core/animation/SampledEffect.h"
 
-#include "core/animation/interpolation/StyleInterpolation.h"
+#include "core/animation/StyleInterpolation.h"
 
 namespace blink {
 
 SampledEffect::SampledEffect(Animation* animation, PassOwnPtrWillBeRawPtr<WillBeHeapVector<RefPtrWillBeMember<Interpolation> > > interpolations)
     : m_animation(animation)
 #if !ENABLE(OILPAN)
     , m_player(animation->player())
 #endif
     , m_interpolations(interpolations)
     , m_playerSortInfo(animation->player()->sortInfo())
@@ skipping 38 matching lines @@
 
 void SampledEffect::trace(Visitor* visitor)
 {
     visitor->trace(m_animation);
 #if ENABLE(OILPAN)
     visitor->trace(m_interpolations);
 #endif
 }
 
 } // namespace blink