Stop scheduling in-order script execution upon hitting failed script.

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 206 matching lines @@
 
 bool PendingScript::isReady() const
 {
     if (resource() && !resource()->isLoaded())
         return false;
     if (m_streamer && !m_streamer->isFinished())
         return false;
     return true;
 }
 
+bool PendingScript::errorOccurred() const
+{
+    if (resource())
+        return resource()->errorOccurred();
+    if (m_streamer && m_streamer->resource())
+        return m_streamer->resource()->errorOccurred();
+    return false;
+}
+
 } // namespace blink