Moving GraphicsContext and dependencies from core to platform.

Source/platform/graphics/ImageFrameGenerator.h

 /*
  * Copyright (C) 2012 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ImageFrameGenerator_h
 #define ImageFrameGenerator_h
 
 #include "SkBitmap.h"
 #include "SkSize.h"
 #include "SkTypes.h"
+#include "platform/PlatformExport.h"
 #include "platform/graphics/ThreadSafeDataTransport.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/ThreadingPrimitives.h"
 #include "wtf/ThreadSafeRefCounted.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 class ImageDecoder;
 class ScaledImageFragment;
 class SharedBuffer;
 
-class ImageDecoderFactory {
+class PLATFORM_EXPORT ImageDecoderFactory {
+    WTF_MAKE_NONCOPYABLE(ImageDecoderFactory);
 public:
+    ImageDecoderFactory() {}
     virtual ~ImageDecoderFactory() { }
     virtual PassOwnPtr<ImageDecoder> create() = 0;
 };
 
-class ImageFrameGenerator : public ThreadSafeRefCounted<ImageFrameGenerator> {
+class PLATFORM_EXPORT ImageFrameGenerator : public ThreadSafeRefCounted<ImageFrameGenerator> {
+    WTF_MAKE_NONCOPYABLE(ImageFrameGenerator);
 public:
     static PassRefPtr<ImageFrameGenerator> create(const SkISize& fullSize, PassRefPtr<SharedBuffer> data, bool allDataReceived, bool isMultiFrame = false)
     {
         return adoptRef(new ImageFrameGenerator(fullSize, data, allDataReceived, isMultiFrame));
     }
 
     ImageFrameGenerator(const SkISize& fullSize, PassRefPtr<SharedBuffer>, bool allDataReceived, bool isMultiFrame);
     ~ImageFrameGenerator();
 
     const ScaledImageFragment* decodeAndScale(const SkISize& scaledSize, size_t index = 0);
@@ skipping 45 matching lines @@
     // Prevents multiple decode operations on the same data.
     Mutex m_decodeMutex;
 
     // Protect concurrent access to m_hasAlpha.
     Mutex m_alphaMutex;
 };
 
 } // namespace WebCore
 
 #endif