Set navigationStart correctly for all load types.

third_party/WebKit/Source/core/loader/FrameLoader.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) Research In Motion Limited 2009. 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:
  *
@@ skipping 87 matching lines @@
     // FIXME: clear() is trying to do too many things. We should break it down into smaller functions.
     void clear();
 
     void replaceDocumentWhileExecutingJavaScriptURL(const String& source, Document* ownerDocument);
 
     // Sets a timer to notify the client that the initial empty document has
     // been accessed, and thus it is no longer safe to show a provisional URL
     // above the document without risking a URL spoof.
     void didAccessInitialDocument();
 
+    // Returns true if |didAccessInitialDocument| was called.
+    bool getDidAccessInitialDocument() const { return m_didAccessInitialDocument; }

[clamy, 2016/07/21 11:52:44]

Normally, for a boolean getter, we would call the method
didAccessInitialDocument, but considering we already have another one called
didAccessInitialDocument this is a bit tricky. How about calling it
hasAccessedIntialDocument (with member variable name change), and changing the
names accordingly in WebFrame?

[Alexander Semashko, 2016/07/21 14:00:22]

Fine. Done.

+
     // If the initial empty document is showing and has been accessed, this
     // cancels the timer and immediately notifies the client in cases that
     // waiting to notify would allow a URL spoof.
     void notifyIfInitialDocumentAccessed();
 
     DocumentLoader* documentLoader() const { return m_documentLoader.get(); }
     DocumentLoader* provisionalDocumentLoader() const { return m_provisionalDocumentLoader.get(); }
 
     void loadFailed(DocumentLoader*, const ResourceError&);
 
@@ skipping 167 matching lines @@
 
     SandboxFlags m_forcedSandboxFlags;
 
     bool m_dispatchingDidClearWindowObjectInMainWorld;
     bool m_protectProvisionalLoader;
 };
 
 } // namespace blink
 
 #endif // FrameLoader_h