Remove assorted unnecessary includes in core/paint/

third_party/WebKit/Source/core/paint/BoxPainter.h

 // 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.
 
 #ifndef BoxPainter_h
 #define BoxPainter_h
 
-#include "core/layout/LayoutBoxModelObject.h"
-#include "core/paint/ObjectPainter.h"
+#include "core/layout/BackgroundBleedAvoidance.h"
 #include "core/style/ShadowData.h"
+#include "platform/geometry/LayoutSize.h"
+#include "platform/graphics/GraphicsTypes.h"
+#include "third_party/skia/include/core/SkXfermode.h"
 #include "wtf/Allocator.h"
 
 namespace blink {
 
 class BackgroundImageGeometry;
+class ComputedStyle;
+class FillLayer;
 class FloatRoundedRect;
+class GraphicsContext;
+class Image;
+class InlineFlowBox;
 class LayoutPoint;
+class LayoutRect;
+class LayoutBoxModelObject;
+class NinePieceImage;
 struct PaintInfo;
 class LayoutBox;
 class LayoutObject;
 
 class BoxPainter {
     STACK_ALLOCATED();
 public:
     BoxPainter(const LayoutBox& layoutBox) : m_layoutBox(layoutBox) { }
     void paint(const PaintInfo&, const LayoutPoint&);
 
@@ skipping 24 matching lines @@
 
 private:
     void paintBackground(const PaintInfo&, const LayoutRect&, const Color& backgroundColor, BackgroundBleedAvoidance = BackgroundBleedNone);
 
     const LayoutBox& m_layoutBox;
 };
 
 } // namespace blink
 
 #endif