Remove ~1750 superfluous includes from core

Source/core/platform/graphics/skia/SkiaUtils.cpp

 /*
  * Copyright (c) 2006,2007,2008, 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:
  * 
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * 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/graphics/skia/SkiaUtils.h"
 
-#include "SkCanvas.h"
 #include "SkColorPriv.h"
 #include "SkMatrix.h"
 #include "SkRegion.h"
-#include "core/platform/SharedBuffer.h"
 #include "core/platform/graphics/GraphicsContext.h"
 #include "core/platform/graphics/ImageBuffer.h"
 
 namespace WebCore {
 
 static const struct CompositOpToXfermodeMode {
     uint8_t mCompositOp;
     uint8_t m_xfermodeMode;
 } gMapCompositOpsToXfermodeModes[] = {
     { CompositeClear,           SkXfermode::kClear_Mode },
@@ skipping 138 matching lines @@
 
 GraphicsContext* scratchContext()
 {
     static ImageBuffer* scratch = ImageBuffer::create(IntSize(1, 1)).leakPtr();
     // We don't bother checking for failure creating the ImageBuffer, since our
     // ImageBuffer initializer won't fail.
     return scratch->context();
 }
 
 }  // namespace WebCore