Get rid of the multiple includes of browser_action_test_util files in browser.lib and browser_tests…

chrome/test/base/ui_test_utils.cc

Index: chrome/test/base/ui_test_utils.cc
===================================================================
--- chrome/test/base/ui_test_utils.cc	(revision 143189)
+++ chrome/test/base/ui_test_utils.cc	(working copy)
@@ -342,13 +342,6 @@
   observer.Wait();
 }
 
-void WaitForBrowserActionUpdated(ExtensionAction* browser_action) {
-  WindowedNotificationObserver observer(
-      chrome::NOTIFICATION_EXTENSION_BROWSER_ACTION_UPDATED,
-      content::Source<ExtensionAction>(browser_action));
-  observer.Wait();
-}
-
 void WaitForLoadStop(WebContents* tab) {
   WindowedNotificationObserver load_stop_observer(
       content::NOTIFICATION_LOAD_STOP,