Remove unused includes from core/platform .cpp files

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

 /*
  * Copyright (c) 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 13 matching lines @@
  * 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 "SkBitmap.h"
-#include "SkPixelRef.h"
 #include "SkRect.h"
 #include "SkShader.h"
 #include "core/platform/FloatConversion.h"
-#include "core/platform/Logging.h"
 #include "core/platform/graphics/BitmapImage.h"
 #include "core/platform/graphics/FloatRect.h"
 #include "core/platform/graphics/GraphicsContextStateSaver.h"
 #include "core/platform/graphics/ImageObserver.h"
 #include "core/platform/graphics/skia/NativeImageSkia.h"
 #include "core/platform/graphics/skia/SkiaUtils.h"
 #include "core/platform/graphics/transforms/AffineTransform.h"
 #include <wtf/text/WTFString.h>
 
-#include "skia/ext/image_operations.h"
-#include "skia/ext/platform_canvas.h"
-
 #include <math.h>
 #include <limits>
 
 #include "core/platform/chromium/TraceEvent.h"
 
 namespace WebCore {
 
 // Used by computeResamplingMode to tell how bitmaps should be resampled.
 enum ResamplingMode {
     // Nearest neighbor resampling. Used when we detect that the page is
@@ skipping 460 matching lines @@
     SkPaint paint;
     paint.setShader(shader)->unref();
     paint.setXfermodeMode(WebCoreCompositeToSkiaComposite(compositeOp, blendMode));
 
     paint.setFilterBitmap(resampling == RESAMPLE_LINEAR);
 
     context->drawRect(destRect, paint);
 }
 
 } // namespace WebCore