Fire error event when script integrity check fails.

Source/core/xml/parser/XMLDocumentParser.cpp

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2005, 2006, 2008, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008 Holger Hans Peter Freyther
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 467 matching lines @@
     ScriptLoader* scriptLoader = toScriptLoaderIfPossible(e.get());
     ASSERT(scriptLoader);
 
     // JavaScript can detach this parser, make sure it's kept alive even if
     // detached.
     RefPtrWillBeRawPtr<XMLDocumentParser> protect(this);
 
     if (errorOccurred) {
         scriptLoader->dispatchErrorEvent();
     } else if (!wasCanceled) {
-        scriptLoader->executeScript(sourceCode);
-        scriptLoader->dispatchLoadEvent();
+        if (!scriptLoader->executeScript(sourceCode))
+            scriptLoader->dispatchErrorEvent();
+        else
+            scriptLoader->dispatchLoadEvent();
     }
 
     m_scriptElement = nullptr;
 
     if (!isDetached() && !m_requestingScript)
         resumeParsing();
 }
 
 bool XMLDocumentParser::isWaitingForScripts() const
 {
@@ skipping 595 matching lines @@
     }
 
     // Don't load external scripts for standalone documents (for now).
     ASSERT(!m_pendingScript);
     m_requestingScript = true;
 
     if (scriptLoader->prepareScript(m_scriptStartPosition, ScriptLoader::AllowLegacyTypeInTypeAttribute)) {
         // FIXME: Script execution should be shared between
         // the libxml2 and Qt XMLDocumentParser implementations.
 
+
         if (scriptLoader->readyToBeParserExecuted()) {
-            scriptLoader->executeScript(ScriptSourceCode(scriptLoader->scriptContent(), document()->url(), m_scriptStartPosition));
+            if (!scriptLoader->executeScript(ScriptSourceCode(scriptLoader->scriptContent(), document()->url(), m_scriptStartPosition))) {
+                scriptLoader->dispatchErrorEvent();
+                return;
+            }
         } else if (scriptLoader->willBeParserExecuted()) {
             m_pendingScript = scriptLoader->resource();
             m_scriptElement = element;
             m_pendingScript->addClient(this);
-
             // m_pendingScript will be 0 if script was already loaded and
             // addClient() executed it.
             if (m_pendingScript)
                 pauseParsing();
         } else {
             m_scriptElement = nullptr;
         }
 
         // JavaScript may have detached the parser
         if (isDetached())
@@ skipping 539 matching lines @@
     sax.initialized = XML_SAX2_MAGIC;
     RefPtr<XMLParserContext> parser = XMLParserContext::createStringParser(&sax, &state);
     String parseString = "<?xml version=\"1.0\"?><attrs " + string + " />";
     parseChunk(parser->context(), parseString);
     finishParsing(parser->context());
     attrsOK = state.gotAttributes;
     return state.attributes;
 }
 
 } // namespace blink