Remove Document::LoadEventTried, it's not necessary

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 2499 matching lines @@
         implicitClose();
         return;
     }
 
     m_frame->loader().checkCompleted();
 }
 
 void Document::implicitClose()
 {
     ASSERT(!inStyleRecalc());
-
-    bool wasLocationChangePending = frame() && frame()->navigationScheduler().locationChangePending();
-    bool doload = !parsing() && m_parser && !processingLoadEvent() && !wasLocationChangePending;
-
-    // If the load was blocked because of a pending location change and the location change triggers a same document
-    // navigation, don't fire load events after the same document navigation completes (unless there's an explicit open).
-    m_loadEventProgress = LoadEventTried;
-
-    if (!doload)
+    if (processingLoadEvent() || !m_parser)
+        return;
+    if (frame() && frame()->navigationScheduler().locationChangePending())
         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 107 matching lines @@
     }
     return false;
 }
 
 void Document::dispatchUnloadEvents()
 {
     RefPtrWillBeRawPtr<Document> protect(this);
     if (m_parser)
         m_parser->stopParsing();
 
-    if (m_loadEventProgress >= LoadEventTried && m_loadEventProgress <= UnloadEventInProgress) {
+    if (m_loadEventProgress == LoadEventNotRun)
+        return;
+
+    if (m_loadEventProgress <= UnloadEventInProgress) {
         Element* currentFocusedElement = focusedElement();
         if (isHTMLInputElement(currentFocusedElement))
             toHTMLInputElement(*currentFocusedElement).endEditing();
         if (m_loadEventProgress < PageHideInProgress) {
             m_loadEventProgress = PageHideInProgress;
             if (LocalDOMWindow* window = domWindow())
                 window->dispatchEvent(PageTransitionEvent::create(EventTypeNames::pagehide, false), this);
             if (!m_frame)
                 return;
 
@@ skipping 3183 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