Moving GraphicsContext and dependencies from core to platform.

Source/platform/graphics/BitmapImage.h

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, Inc.
  *
  * 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 10 matching lines @@
  * 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.
  */
 
 #ifndef BitmapImage_h
 #define BitmapImage_h
 
-#include "core/platform/graphics/FrameData.h"
-#include "core/platform/graphics/Image.h"
-#include "core/platform/graphics/ImageSource.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/Color.h"
+#include "platform/graphics/FrameData.h"
+#include "platform/graphics/Image.h"
 #include "platform/graphics/ImageOrientation.h"
+#include "platform/graphics/ImageSource.h"
 #include "wtf/Forward.h"
 
 namespace WebCore {
 
 class NativeImageSkia;
 template <typename T> class Timer;
 
-class BitmapImage : public Image {
+class PLATFORM_EXPORT BitmapImage : public Image {
     friend class GeneratedImage;
     friend class CrossfadeGeneratedImage;
     friend class GradientGeneratedImage;
     friend class GraphicsContext;
 public:
     static PassRefPtr<BitmapImage> create(PassRefPtr<NativeImageSkia> nativeImage, ImageObserver* observer = 0)
     {
         return adoptRef(new BitmapImage(nativeImage, observer));
     }
     static PassRefPtr<BitmapImage> create(ImageObserver* observer = 0)
@@ skipping 126 matching lines @@
     bool m_allDataReceived : 1; // Whether or not we've received all our data.
     mutable bool m_haveSize : 1; // Whether or not our |m_size| member variable has the final overall image size yet.
     bool m_sizeAvailable : 1; // Whether or not we can obtain the size of the first image frame yet from ImageIO.
     mutable bool m_hasUniformFrameSize : 1;
     mutable bool m_haveFrameCount : 1;
 };
 
 }
 
 #endif