Don't use didStopLoading in failed navigation when other nav in progress

third_party/WebKit/Source/core/loader/DocumentLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2011 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 201 matching lines @@
 
 void DocumentLoader::mainReceivedError(const ResourceError& error)
 {
     ASSERT(!error.isNull());
     ASSERT(!mainResourceLoader() || !mainResourceLoader()->defersLoading() || InspectorInstrumentation::isDebuggerPaused(m_frame));
     if (m_applicationCacheHost)
         m_applicationCacheHost->failedLoadingMainResource();
     if (!frameLoader())
         return;
     m_mainDocumentError = error;
-    m_state = MainResourceDone;
+    if (m_state < MainResourceDone)
+        m_state = MainResourceDone;
     frameLoader()->receivedMainResourceError(this, error);
     clearMainResourceHandle();
 }
 
 // Cancels the data source's pending loads.  Conceptually, a data source only loads
 // one document at a time, but one document may have many related resources.
 // stopLoading will stop all loads initiated by the data source,
 // but not loads initiated by child frames' data sources -- that's the WebFrame's job.
 void DocumentLoader::stopLoading()
 {
@@ skipping 561 matching lines @@
 {
     m_writer = createWriterFor(ownerDocument, init, mimeType(), m_writer ? m_writer->encoding() : emptyAtom, true, ForceSynchronousParsing);
     if (!source.isNull())
         m_writer->appendReplacingData(source);
     endWriting(m_writer.get());
 }
 
 DEFINE_WEAK_IDENTIFIER_MAP(DocumentLoader);
 
 } // namespace blink