Add loadedNonEmptyDocument flag in FrameLoader for Resource Timing

Source/core/loader/FrameLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) Research In Motion Limited 2009. All rights reserved.
  * Copyright (C) 2011 Kris Jordan <krisjordan@gmail.com>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ skipping 484 matching lines @@
 }
 
 void FrameLoader::didExplicitOpen()
 {
     m_isComplete = false;
     m_didCallImplicitClose = false;
 
     // Calling document.open counts as committing the first real document load.
     if (!m_stateMachine.committedFirstRealDocumentLoad())
         m_stateMachine.advanceTo(FrameLoaderStateMachine::DisplayingInitialEmptyDocumentPostCommit);
-    
+
     // Prevent window.open(url) -- eg window.open("about:blank") -- from blowing away results
     // from a subsequent window.document.open / window.document.write call. 
     // Canceling redirection here works for all cases because document.open 
     // implicitly precedes document.write.
     m_frame->navigationScheduler()->cancel();
 }
 
 
 void FrameLoader::cancelAndClear()
 {
@@ skipping 2480 matching lines @@
     FloatRect newWindowRect = DOMWindow::adjustWindowRect(page, windowRect);
 
     page->chrome()->setWindowRect(newWindowRect);
     page->chrome()->show();
 
     created = true;
     return frame;
 }
 
 } // namespace WebCore