Move notifications used only in chrome/ out of content/.

chrome/browser/unload_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.
 
 #if defined(OS_POSIX)
 #include <signal.h>
 #endif
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 366 matching lines @@
 // handler can be closed.
 // If this flakes, see http://crbug.com/45162, http://crbug.com/45281 and
 // http://crbug.com/86769.
 IN_PROC_BROWSER_TEST_F(UnloadTest, BrowserCloseTabWhenOtherTabHasListener) {
   NavigateToDataURL(CLOSE_TAB_WHEN_OTHER_TAB_HAS_LISTENER, "only_one_unload");
 
   // Simulate a click to force user_gesture to true; if we don't, the resulting
   // popup will be constrained, which isn't what we want to test.
 
   ui_test_utils::WindowedNotificationObserver observer(
-        content::NOTIFICATION_TAB_ADDED,
+        chrome::NOTIFICATION_TAB_ADDED,
         content::NotificationService::AllSources());
   ui_test_utils::WindowedNotificationObserver load_stop_observer(
       content::NOTIFICATION_LOAD_STOP,
       content::NotificationService::AllSources());
   ui_test_utils::SimulateMouseClick(
       browser()->GetSelectedWebContents(), 20, 20);
   observer.Wait();
   load_stop_observer.Wait();
   CheckTitle("popup");
 
   ui_test_utils::WindowedNotificationObserver tab_close_observer(
-      content::NOTIFICATION_TAB_CLOSED,
+      content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
       content::NotificationService::AllSources());
   browser()->CloseTab();
   tab_close_observer.Wait();
 
   CheckTitle("only_one_unload");
 }
 
 // TODO(ojan): Add tests for unload/beforeunload that have multiple tabs
 // and multiple windows.