Prerender: NoStatePrefetch browser side changes.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 2412 matching lines @@
 
 DocumentParser* Document::implicitOpen(ParserSynchronizationPolicy parserSyncPolicy)
 {
     detachParser();
 
     removeChildren();
     DCHECK(!m_focusedElement);
 
     setCompatibilityMode(NoQuirksMode);
 
-    if (!threadedParsingEnabledForTesting())
+    if (!threadedParsingEnabledForTesting()) {
         parserSyncPolicy = ForceSynchronousParsing;
+    } else if (parserSyncPolicy == AllowAsynchronousParsing && isPrefetchOnly()) {

[droger, 2016/08/16 10:01:54]

This probably belongs to another CL.

[mattcary, 2016/08/17 20:27:32]

Yes, I think this leaked over from your CL. Removed.

+        // Prefetch must be synchronous.
+        parserSyncPolicy = ForceSynchronousParsing;
+    }
 
     m_parserSyncPolicy = parserSyncPolicy;
     m_parser = createParser();
     DocumentParserTiming::from(*this).markParserStart();
     setParsingState(Parsing);
     setReadyState(Loading);
 
     return m_parser;
 }
 
@@ skipping 3587 matching lines @@
 }
 
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (Document* document : set)
         fprintf(stderr, "- Document %p URL: %s\n", document, document->url().getString().utf8().data());
 }
 #endif