Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/image-decoders/gif/GIFImageDecoder.h

Index: Source/core/platform/image-decoders/gif/GIFImageDecoder.h
diff --git a/Source/core/platform/image-decoders/gif/GIFImageDecoder.h b/Source/core/platform/image-decoders/gif/GIFImageDecoder.h
deleted file mode 100644
index 27733fa1bccdea13423aa752d293ff823b1dcf08..0000000000000000000000000000000000000000
--- a/Source/core/platform/image-decoders/gif/GIFImageDecoder.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * 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 GIFImageDecoder_h
-#define GIFImageDecoder_h
-
-#include "core/platform/image-decoders/ImageDecoder.h"
-#include "wtf/OwnPtr.h"
-
-class GIFImageReader;
-
-typedef Vector<unsigned char> GIFRow;
-
-namespace WebCore {
-
-    // This class decodes the GIF image format.
-    class GIFImageDecoder : public ImageDecoder {
-    public:
-        GIFImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfileOption, size_t maxDecodedBytes);
-        virtual ~GIFImageDecoder();
-
-        enum GIFParseQuery { GIFSizeQuery, GIFFrameCountQuery };
-
-        // ImageDecoder
-        virtual String filenameExtension() const OVERRIDE { return "gif"; }
-        virtual void setData(SharedBuffer* data, bool allDataReceived) OVERRIDE;
-        virtual bool isSizeAvailable() OVERRIDE;
-        virtual size_t frameCount() OVERRIDE;
-        virtual int repetitionCount() const OVERRIDE;
-        virtual ImageFrame* frameBufferAtIndex(size_t) OVERRIDE;
-        virtual bool frameIsCompleteAtIndex(size_t) const OVERRIDE;
-        virtual float frameDurationAtIndex(size_t) const OVERRIDE;
-        virtual size_t clearCacheExceptFrame(size_t) OVERRIDE;
-        // CAUTION: setFailed() deletes |m_reader|.  Be careful to avoid
-        // accessing deleted memory, especially when calling this from inside
-        // GIFImageReader!
-        virtual bool setFailed() OVERRIDE;
-
-        // Callbacks from the GIF reader.
-        bool haveDecodedRow(size_t frameIndex, GIFRow::const_iterator rowBegin, size_t width, size_t rowNumber, unsigned repeatCount, bool writeTransparentPixels);
-        bool frameComplete(size_t frameIndex);
-
-        // For testing.
-        bool parseCompleted() const;
-
-    private:
-        virtual void clearFrameBuffer(size_t frameIndex) OVERRIDE;
-
-        // Parses as much as is needed to answer the query, ignoring bitmap
-        // data. If parsing fails, sets the "decode failure" flag.
-        void parse(GIFParseQuery);
-
-        // Decodes bitmap data of the frame. Depending on the disposal method
-        // of prior frames, also decodes all required prior frames. If decoding
-        // fails, sets the "decode failure" flag.
-        void decode(size_t frameIndex);
-
-        // Called to initialize the frame buffer with the given index, based on
-        // the previous frame's disposal method. Returns true on success. On
-        // failure, this will mark the image as failed.
-        bool initFrameBuffer(size_t frameIndex);
-
-        bool m_currentBufferSawAlpha;
-        mutable int m_repetitionCount;
-        OwnPtr<GIFImageReader> m_reader;
-    };
-
-} // namespace WebCore
-
-#endif