Reland "Prepare blink to unify definitions of load completion"

Source/web/tests/WebFrameTest.cpp

 /*
  * Copyright (C) 2010 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 5314 matching lines @@
     FrameTestHelpers::WebViewHelper newWebViewHelper;
     WebView* newView = newWebViewHelper.initialize(true);
     newView->mainFrame()->setOpener(webViewHelper.webView()->mainFrame());
     runPendingTasks();
     EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);
 
     // Access the initial document with document.write, which moves us past the
     // initial empty document state of the state machine. We normally set a
     // timer to notify the client.
     newView->mainFrame()->executeScript(
-        WebScriptSource("window.opener.document.write('Modified');"));
+        WebScriptSource("window.opener.document.write('Modified'); window.opener.document.close();"));
     EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);
 
     // Make sure that a modal dialog forces us to notify right away.
     newView->mainFrame()->executeScript(
         WebScriptSource("window.opener.confirm('Modal');"));
     EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);
 
     // Ensure that we don't notify again later.
     runPendingTasks();
     EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);
@@ skipping 1570 matching lines @@
     EXPECT_EQ(1u, frameClient.navigationalDataReceivedCount());
 
     // Neither should a page reload.
     localFrame->reload();
     EXPECT_EQ(4u, frameClient.provisionalLoadCount());
     EXPECT_FALSE(frameClient.wasLastProvisionalLoadATransition());
     EXPECT_EQ(1u, frameClient.navigationalDataReceivedCount());
 }
 
 } // namespace