Fix up various browser tests not to use WaitForNavigation.

chrome/test/in_process_browser_test.cc

Index: chrome/test/in_process_browser_test.cc
diff --git a/chrome/test/in_process_browser_test.cc b/chrome/test/in_process_browser_test.cc
index f8f882d0b338c5f1ee0d6cfa8d7b7845b14661b9..2b99c50eea41b13196c6ed53d6549ac3ec9ce421 100644
--- a/chrome/test/in_process_browser_test.cc
+++ b/chrome/test/in_process_browser_test.cc
@@ -57,16 +57,15 @@
 namespace {
 
 void InitializeBrowser(Browser* browser) {
+  ui_test_utils::WindowedNotificationObserver observer(
+      content::NOTIFICATION_LOAD_STOP,
+      NotificationService::AllSources());
   browser->AddSelectedTabWithURL(GURL(chrome::kAboutBlankURL),
                                  PageTransition::START_PAGE);
-
   // Wait for the page to finish loading.
-  ui_test_utils::WaitForNavigation(
-      &browser->GetSelectedTabContents()->controller());
-
+  observer.Wait();
   browser->window()->Show();
 }
-
 }  // namespace
 
 extern int BrowserMain(const MainFunctionParams&);