Remove ~1750 superfluous includes from core

Source/core/rendering/RenderRegion.cpp

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. 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 13 matching lines @@
  * 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 "config.h"
 #include "core/rendering/RenderRegion.h"
 
 #include "core/css/resolver/StyleResolver.h"
-#include "core/dom/Range.h"
-#include "core/platform/graphics/GraphicsContext.h"
-#include "core/platform/graphics/IntRect.h"
 #include "core/rendering/FlowThreadController.h"
-#include "core/rendering/HitTestResult.h"
-#include "core/rendering/LayoutRepainter.h"
 #include "core/rendering/PaintInfo.h"
 #include "core/rendering/RenderBoxRegionInfo.h"
 #include "core/rendering/RenderNamedFlowThread.h"
 #include "core/rendering/RenderView.h"
 
 using namespace std;
 
 namespace WebCore {
 
 RenderRegion::RenderRegion(Element* element, RenderFlowThread* flowThread)
@@ skipping 575 matching lines @@
     if (!hasOverrideHeight())
         return;
 
     LayoutUnit newLogicalHeight = overrideLogicalContentHeight() + borderAndPaddingLogicalHeight();
     ASSERT(newLogicalHeight < LayoutUnit::max() / 2);
     if (newLogicalHeight > logicalHeight())
         setLogicalHeight(newLogicalHeight);
 }
 
 } // namespace WebCore