Moving GraphicsContext and dependencies from core to platform.

Source/platform/image-decoders/png/PNGImageDecoder.h

 /*
  * Copyright (C) 2006 Apple Computer, 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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 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.
  */
 
 #ifndef PNGImageDecoder_h
 #define PNGImageDecoder_h
 
-#include "core/platform/image-decoders/ImageDecoder.h"
+#include "platform/image-decoders/ImageDecoder.h"
+#include "wtf/Noncopyable.h"
 #include "wtf/OwnPtr.h"
 
 namespace WebCore {
 
-    class PNGImageReader;
+class PNGImageReader;
 
-    // This class decodes the PNG image format.
-    class PNGImageDecoder : public ImageDecoder {
-    public:
-        PNGImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfileOption, size_t maxDecodedBytes);
-        virtual ~PNGImageDecoder();
+// This class decodes the PNG image format.
+class PLATFORM_EXPORT PNGImageDecoder : public ImageDecoder {
+    WTF_MAKE_NONCOPYABLE(PNGImageDecoder);
+public:
+    PNGImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfileOption, size_t maxDecodedBytes);
+    virtual ~PNGImageDecoder();
 
-        // ImageDecoder
-        virtual String filenameExtension() const { return "png"; }
-        virtual bool isSizeAvailable();
-        virtual ImageFrame* frameBufferAtIndex(size_t);
-        // CAUTION: setFailed() deletes |m_reader|.  Be careful to avoid
-        // accessing deleted memory, especially when calling this from inside
-        // PNGImageReader!
-        virtual bool setFailed();
+    // ImageDecoder
+    virtual String filenameExtension() const { return "png"; }
+    virtual bool isSizeAvailable();
+    virtual ImageFrame* frameBufferAtIndex(size_t);
+    // CAUTION: setFailed() deletes |m_reader|.  Be careful to avoid
+    // accessing deleted memory, especially when calling this from inside
+    // PNGImageReader!
+    virtual bool setFailed();
 
-        // Callbacks from libpng
-        void headerAvailable();
-        void rowAvailable(unsigned char* rowBuffer, unsigned rowIndex, int interlacePass);
-        void pngComplete();
+    // Callbacks from libpng
+    void headerAvailable();
+    void rowAvailable(unsigned char* rowBuffer, unsigned rowIndex, int interlacePass);
+    void pngComplete();
 
-        bool isComplete() const
-        {
-            return !m_frameBufferCache.isEmpty() && (m_frameBufferCache.first().status() == ImageFrame::FrameComplete);
-        }
+    bool isComplete() const
+    {
+        return !m_frameBufferCache.isEmpty() && (m_frameBufferCache.first().status() == ImageFrame::FrameComplete);
+    }
 
-    private:
-        // Decodes the image.  If |onlySize| is true, stops decoding after
-        // calculating the image size.  If decoding fails but there is no more
-        // data coming, sets the "decode failure" flag.
-        void decode(bool onlySize);
+private:
+    // Decodes the image.  If |onlySize| is true, stops decoding after
+    // calculating the image size.  If decoding fails but there is no more
+    // data coming, sets the "decode failure" flag.
+    void decode(bool onlySize);
 
-        OwnPtr<PNGImageReader> m_reader;
-        bool m_doNothingOnFailure;
-    };
+    OwnPtr<PNGImageReader> m_reader;
+    bool m_doNothingOnFailure;
+};
 
 } // namespace WebCore
 
 #endif