Remove duplicated headers from core/

Source/core/platform/ScrollbarTheme.cpp

 /*
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * 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 "config.h"
 #include "core/platform/ScrollbarTheme.h"
 
 #include "RuntimeEnabledFeatures.h"
-#include "core/platform/graphics/GraphicsContext.h"
 #include "core/platform/mock/ScrollbarThemeMock.h"
 #include "core/platform/mock/ScrollbarThemeOverlayMock.h"
 #include "platform/scroll/ScrollbarThemeClient.h"
 
 namespace WebCore {
 
 ScrollbarTheme* ScrollbarTheme::theme()
 {
     if (ScrollbarTheme::mockScrollbarsEnabled()) {
         if (RuntimeEnabledFeatures::overlayScrollbarsEnabled()) {
@@ skipping 278 matching lines @@
 void ScrollbarTheme::paintOverhangBackground(GraphicsContext* context, const IntRect& horizontalOverhangRect, const IntRect& verticalOverhangRect, const IntRect& dirtyRect)
 {
     context->setFillColor(Color::white);
     if (!horizontalOverhangRect.isEmpty())
         context->fillRect(intersection(horizontalOverhangRect, dirtyRect));
     if (!verticalOverhangRect.isEmpty())
         context->fillRect(intersection(verticalOverhangRect, dirtyRect));
 }
 
 }