content: Move all listeners of NOTIFICATION_RENDER_VIEW_HOST_CREATED out of content.

chrome/browser/history/redirect_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Navigates the browser to server and client redirect pages and makes sure
 // that the correct redirects are reflected in the history database. Errors
 // here might indicate that WebKit changed the calls our glue layer gets in
 // the case of redirects. It may also mean problems with the history system.
 
 #include "base/bind.h"
@@ skipping 263 matching lines @@
   GURL final_url = test_server()->GetURL("files/title2.html");
   GURL slow = test_server()->GetURL("slow?60");
   GURL first_url = test_server()->GetURL(
       "client-redirect?" + slow.spec());
 
   content::WebContents* web_contents =
       browser()->tab_strip_model()->GetActiveWebContents();
   content::TestNavigationObserver observer(
       content::Source<content::NavigationController>(
           &web_contents->GetController()),
-      NULL, 2);
+      2);
 
   ui_test_utils::NavigateToURLWithDisposition(
       browser(), first_url, CURRENT_TAB, ui_test_utils::BROWSER_TEST_NONE);
   // We don't sleep here - the first navigation won't have been committed yet
   // because we told the server to wait a minute. This means the browser has
   // started it's provisional load for the client redirect destination page but
   // hasn't completed. Our time is now!
   ui_test_utils::NavigateToURLWithDisposition(
       browser(), final_url, CURRENT_TAB, ui_test_utils::BROWSER_TEST_NONE);
   observer.Wait();
 
   // Check to make sure the navigation did in fact take place and we are
   // at the expected page.
   EXPECT_EQ(ASCIIToUTF16("Title Of Awesomeness"),
             browser()->tab_strip_model()->GetActiveWebContents()->GetTitle());
 
   bool final_navigation_not_redirect = true;
   std::vector<GURL> redirects = GetRedirects(first_url);
   // Check to make sure our request for files/title2.html doesn't get flagged
   // as a client redirect from the first (/client-redirect?) page.
   for (std::vector<GURL>::iterator it = redirects.begin();
        it != redirects.end(); ++it) {
     if (final_url.spec() == it->spec()) {
       final_navigation_not_redirect = false;
       break;
     }
   }
   EXPECT_TRUE(final_navigation_not_redirect);
 }