[WIP] Move ImageDecoders to SkCodec

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

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp.toker@collabora.co.uk>
  * Copyright (C) 2008, 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.
@@ skipping 42 matching lines @@
     decoder_->SetData(std::move(data), all_data_received);
     // If the decoder is pre-instantiated, it means we've already validated the
     // data/signature at some point.
     return true;
   }
 
   decoder_ = DeferredImageDecoder::Create(data, all_data_received,
                                           ImageDecoder::kAlphaPremultiplied,
                                           decoder_color_behavior_);
 
-  // Insufficient data is not a failure.
-  return decoder_ || !ImageDecoder::HasSufficientDataToSniffImageType(*data);
+  return decoder_ ? true : false;
 }
 
 String ImageSource::FilenameExtension() const {
   return decoder_ ? decoder_->FilenameExtension() : String();
 }
 
 bool ImageSource::IsSizeAvailable() {
   return decoder_ && decoder_->IsSizeAvailable();
 }
 
@@ skipping 76 matching lines @@
 
 bool ImageSource::FrameIsCompleteAtIndex(size_t index) const {
   return decoder_ && decoder_->FrameIsCompleteAtIndex(index);
 }
 
 size_t ImageSource::FrameBytesAtIndex(size_t index) const {
   return decoder_ ? decoder_->FrameBytesAtIndex(index) : 0;
 }
 
 }  // namespace blink