Remove ~1750 superfluous includes from core

Source/core/platform/graphics/Gradient.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 12 matching lines @@
  * 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/graphics/Gradient.h"
 
 #include "SkColorShader.h"
 #include "SkGradientShader.h"
-#include "core/css/CSSParser.h"
 #include "core/platform/graphics/Color.h"
 #include "core/platform/graphics/FloatRect.h"
 #include "core/platform/graphics/GraphicsContext.h"
 #include "core/platform/graphics/skia/SkiaUtils.h"
 #include <wtf/HashFunctions.h>
 #include <wtf/StringHasher.h>
 #include <wtf/UnusedParam.h>
 
 using WTF::pairIntHash;
 
@@ skipping 310 matching lines @@
     return m_gradient;
 }
 
 void Gradient::fill(GraphicsContext* context, const FloatRect& rect)
 {
     context->setFillGradient(this);
     context->fillRect(rect);
 }
 
 } //namespace