Eliminate unnecessary includes of LayoutBlockFlow-derived headers.

third_party/WebKit/Source/core/animation/DocumentAnimations.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 21 matching lines @@
 
 #include "core/animation/AnimationClock.h"
 #include "core/animation/AnimationTimeline.h"
 #include "core/animation/CompositorPendingAnimations.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/dom/Node.h"
 #include "core/dom/NodeComputedStyle.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
-#include "core/layout/LayoutView.h"
 
 namespace blink {
 
 namespace {
 
 void updateAnimationTiming(Document& document, TimingUpdateReason reason)
 {
     document.timeline().serviceAnimations(reason);
 }
 
@@ skipping 20 matching lines @@
     ASSERT(document.lifecycle().state() == DocumentLifecycle::CompositingClean);
     if (document.compositorPendingAnimations().update()) {
         ASSERT(document.view());
         document.view()->scheduleAnimation();
     }
 
     document.timeline().scheduleNextService();
 }
 
 } // namespace blink