Remove duplicated headers from core/

Source/core/platform/graphics/GraphicsContext3D.cpp

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2010 Mozilla Corporation. 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 11 matching lines @@
  * 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/GraphicsContext3D.h"
 
-#include "core/platform/graphics/Extensions3D.h"
 #include "core/platform/graphics/GraphicsContext.h"
-#include "core/platform/graphics/Image.h"
 #include "core/platform/graphics/ImageBuffer.h"
 #include "core/platform/graphics/gpu/DrawingBuffer.h"
 #include "core/platform/image-decoders/ImageDecoder.h"
 #include "platform/CheckedInt.h"
 #include "platform/graphics/ImageObserver.h"
 #include "third_party/skia/include/gpu/GrContext.h"
 #include "third_party/skia/include/gpu/gl/GrGLInterface.h"
 #include "wtf/CPU.h"
-#include "wtf/OwnPtr.h"
-#include "wtf/PassOwnPtr.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/StringHash.h"
-#include "wtf/text/WTFString.h"
 
 #include "public/platform/Platform.h"
 #include "public/platform/WebGraphicsContext3D.h"
 #include "public/platform/WebGraphicsContext3DProvider.h"
 
 namespace WebCore {
 
 namespace {
 
 void getDrawingParameters(DrawingBuffer* drawingBuffer, blink::WebGraphicsContext3D* graphicsContext3D,
@@ skipping 883 matching lines @@
     for (unsigned i = 0; i < count; i++) {
         uint8* rowA = framebuffer + i * rowBytes;
         uint8* rowB = framebuffer + (height - i - 1) * rowBytes;
         memcpy(scanline, rowB, rowBytes);
         memcpy(rowB, rowA, rowBytes);
         memcpy(rowA, scanline, rowBytes);
     }
 }
 
 } // namespace WebCore