Add destroyDecodedDataIfPossible to ScriptResource to stop ScriptStreaming.

third_party/WebKit/Source/core/dom/PendingScript.cpp

 /*
  * Copyright (C) 2010 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 163 matching lines @@
     if (m_streamer)
         m_streamer->notifyFinished(resource);
 }
 
 void PendingScript::notifyAppendData(ScriptResource* resource)
 {
     if (m_streamer)
         m_streamer->notifyAppendData(resource);
 }
 
+void PendingScript::notifyCancel(ScriptResource*)
+{
+    if (m_streamer)
+        m_streamer->cancel();
+}
+
 DEFINE_TRACE(PendingScript)
 {
     visitor->trace(m_element);
     visitor->trace(m_streamer);
     visitor->trace(m_client);
     ResourceOwner<ScriptResource>::trace(visitor);
 }
 
 ScriptSourceCode PendingScript::getSource(const KURL& documentURL, bool& errorOccurred) const
 {
@@ skipping 27 matching lines @@
 bool PendingScript::errorOccurred() const
 {
     if (resource())
         return resource()->errorOccurred();
     if (m_streamer && m_streamer->resource())
         return m_streamer->resource()->errorOccurred();
     return false;
 }
 
 } // namespace blink