Remove assorted unnecessary includes in core/layout/

third_party/WebKit/Source/core/layout/svg/ReferenceFilterBuilder.cpp

 /*
  * Copyright (C) 2013 Adobe Systems Inc. All rights reserved.
  * Copyright (C) 2013 Google Inc.  All rights reserved.
  * Copyright (C) 2011 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 11 matching lines @@
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/layout/svg/ReferenceFilterBuilder.h"
 
 #include "core/dom/Element.h"
 #include "core/fetch/DocumentResource.h"
-#include "core/layout/LayoutBox.h"
+#include "core/layout/LayoutObject.h"
 #include "core/paint/PaintLayer.h"
 #include "core/svg/SVGDocumentExtensions.h"
 #include "core/svg/SVGFilterElement.h"
 #include "core/svg/graphics/filters/SVGFilterBuilder.h"
 #include "platform/graphics/filters/Filter.h"
 #include "platform/graphics/filters/SourceGraphic.h"
 
 namespace blink {
 
 namespace {
@@ skipping 65 matching lines @@
         previousEffect = result->getSourceGraphic();
 
     SVGFilterBuilder builder(previousEffect, nullptr, fillPaint, strokePaint);
     builder.buildGraph(result, filterElement, referenceBox);
 
     result->setLastEffect(builder.lastEffect());
     return result;
 }
 
 } // namespace blink