Prepare blink to unify definitions of load completion

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 2477 matching lines @@
     }
 
     m_frame->loader().checkCompleted();
 }
 
 void Document::implicitClose()
 {
     ASSERT(!inStyleRecalc());
     if (processingLoadEvent() || !m_parser)
         return;
-    if (frame() && frame()->navigationScheduler().locationChangePending())
+    if (frame() && frame()->navigationScheduler().locationChangePending()) {
+        suppressLoadEvent();

[dcheng, 2014/10/20 18:35:14]

If I'm reading this correctly, this means we won't fire a load event if we get a
navigation before the document is closed?

[dcheng, 2014/10/20 18:35:14]

If I'm reading this correctly, this means we won't fire a load event if we get a
navigation before the document is closed?

         return;
+    }
 
     // The call to dispatchWindowLoadEvent can detach the LocalDOMWindow and cause it (and its
     // attached Document) to be destroyed.
     RefPtrWillBeRawPtr<LocalDOMWindow> protectedWindow(this->domWindow());
 
     m_loadEventProgress = LoadEventInProgress;
 
     ScriptableDocumentParser* parser = scriptableDocumentParser();
     m_wellFormed = parser && parser->wellFormed();
 
@@ skipping 1935 matching lines @@
 
 void Document::applyXSLTransform(ProcessingInstruction* pi)
 {
     ASSERT(!pi->isLoading());
     UseCounter::count(*this, UseCounter::XSLProcessingInstruction);
     RefPtrWillBeRawPtr<XSLTProcessor> processor = XSLTProcessor::create(*this);
     processor->setXSLStyleSheet(toXSLStyleSheet(pi->sheet()));
     String resultMIMEType;
     String newSource;
     String resultEncoding;
-    if (!processor->transformToString(this, resultMIMEType, newSource, resultEncoding))
+    setParsing(true);

[dcheng, 2014/10/20 18:35:14]

It would be kind of nice to use some sort of scoped here (like TemporaryChange,
but that only works with variables).

+    if (!processor->transformToString(this, resultMIMEType, newSource, resultEncoding)) {
+        setParsing(false);
         return;
+    }
     // FIXME: If the transform failed we should probably report an error (like Mozilla does).
     LocalFrame* ownerFrame = frame();
     processor->createDocumentFromSource(newSource, resultEncoding, resultMIMEType, this, ownerFrame);
     InspectorInstrumentation::frameDocumentUpdated(ownerFrame);
+    setParsing(false);
 }
 
 void Document::setTransformSource(PassOwnPtr<TransformSource> source)
 {
     m_transformSource = source;
 }
 
 void Document::setDesignMode(InheritedBool value)
 {
     m_designMode = value;
@@ skipping 1383 matching lines @@
 using namespace blink;
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (WeakDocumentSet::const_iterator it = set.begin(); it != set.end(); ++it) {
         fprintf(stderr, "- Document %p URL: %s\n", *it, (*it)->url().string().utf8().data());
     }
 }
 #endif