Cancel image loads if decoding failed (attempt #2)

third_party/WebKit/Source/platform/graphics/ImageSource.h

 /*
  * Copyright (C) 2004, 2005, 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
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 #ifndef ImageSource_h
 #define ImageSource_h
 
 #include "platform/PlatformExport.h"
+#include "platform/graphics/DeferredImageDecoder.h"
 #include "platform/graphics/ImageOrientation.h"
 #include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
 #include <memory>
 
 class SkImage;
 
 namespace blink {
 
-class DeferredImageDecoder;
 class ImageOrientation;
 class IntPoint;
 class IntSize;
 class SharedBuffer;
 
 class PLATFORM_EXPORT ImageSource final {
     USING_FAST_MALLOC(ImageSource);
     WTF_MAKE_NONCOPYABLE(ImageSource);
 public:
     ImageSource();
@@ skipping 13 matching lines @@
     // from the beginning.
     //
     // Implementations may elect to preserve more frames than the one requested
     // here if doing so is likely to save CPU time in the future, but will pay
     // an increased memory cost to do so.
     //
     // Returns the number of bytes of frame data actually cleared.
     size_t clearCacheExceptFrame(size_t);
 
     PassRefPtr<SharedBuffer> data();
-    void setData(SharedBuffer& data, bool allDataReceived);
+    ImageDecoder::SniffResult setData(SharedBuffer& data, bool allDataReceived);
     String filenameExtension() const;
 
     bool isSizeAvailable();
     bool hasColorProfile() const;
     IntSize size(RespectImageOrientationEnum = DoNotRespectImageOrientation) const;
     IntSize frameSizeAtIndex(size_t, RespectImageOrientationEnum = DoNotRespectImageOrientation) const;
 
     bool getHotSpot(IntPoint&) const;
     int repetitionCount();
 
@@ skipping 11 matching lines @@
     // frame has not yet begun to decode.
     size_t frameBytesAtIndex(size_t) const;
 
 private:
     std::unique_ptr<DeferredImageDecoder> m_decoder;
 };
 
 } // namespace blink
 
 #endif