Blink image-decoders: (lazy) deferred image decoding support for ICO

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

 /*
  * Copyright (C) 2012 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 226 matching lines @@
 
     const bool isSingleFrame = m_actualDecoder->repetitionCount() == cAnimationNone || (m_allDataReceived && m_actualDecoder->frameCount() == 1u);
     const SkISize decodedSize = SkISize::Make(m_actualDecoder->decodedSize().width(), m_actualDecoder->decodedSize().height());
     m_frameGenerator = ImageFrameGenerator::create(decodedSize, !isSingleFrame);
 }
 
 void DeferredImageDecoder::prepareLazyDecodedFrames()
 {
     if (!s_enabled
         || !m_actualDecoder
-        || !m_actualDecoder->isSizeAvailable()
-        || m_actualDecoder->filenameExtension() == "ico")
+        || !m_actualDecoder->isSizeAvailable())
         return;
 
     activateLazyDecoding();
 
     const size_t previousSize = m_frameData.size();
     m_frameData.resize(m_actualDecoder->frameCount());
 
     // We have encountered a broken image file. Simply bail.
     if (m_frameData.size() < previousSize)
         return;
@@ skipping 42 matching lines @@
     return image.release();
 }
 
 bool DeferredImageDecoder::hotSpot(IntPoint& hotSpot) const
 {
     // TODO: Implement.
     return m_actualDecoder ? m_actualDecoder->hotSpot(hotSpot) : false;
 }
 
 } // namespace blink