Add hasCommittedRealDocument API to WebFrame.

Source/web/WebFrameImpl.cpp

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 964 matching lines @@
 
 void WebFrameImpl::stopLoading()
 {
     if (!frame())
         return;
     // FIXME: Figure out what we should really do here.  It seems like a bug
     // that FrameLoader::stopLoading doesn't call stopAllLoaders.
     frame()->loader()->stopAllLoaders();
 }
 
+bool WebFrameImpl::hasCommittedRealDocument() const
+{
+    if (!frame())
+        return false;
+    return frame()->loader()->stateMachine()->committedFirstRealDocumentLoad();
+}
+
 WebDataSource* WebFrameImpl::provisionalDataSource() const
 {
     ASSERT(frame());
 
     // We regard the policy document loader as still provisional.
     DocumentLoader* documentLoader = frame()->loader()->provisionalDocumentLoader();
     if (!documentLoader)
         documentLoader = frame()->loader()->policyDocumentLoader();
 
     return DataSourceForDocLoader(documentLoader);
@@ skipping 1481 matching lines @@
 
         // There is a possibility that the frame being detached was the only
         // pending one. We need to make sure final replies can be sent.
         flushCurrentScopingEffort(m_findRequestIdentifier);
 
         cancelPendingScopingEffort();
     }
 }
 
 } // namespace WebKit