Fix up various browser tests not to use WaitForNavigation.

chrome/browser/sidebar/sidebar_browsertest.cc

Index: chrome/browser/sidebar/sidebar_browsertest.cc
diff --git a/chrome/browser/sidebar/sidebar_browsertest.cc b/chrome/browser/sidebar/sidebar_browsertest.cc
index b60570a93d2c91a3290e53e988e62f63ba6035a8..d93bd76773baa763a58b232906c302b5cda99b16 100644
--- a/chrome/browser/sidebar/sidebar_browsertest.cc
+++ b/chrome/browser/sidebar/sidebar_browsertest.cc
@@ -72,13 +72,14 @@ class SidebarTest : public ExtensionBrowserTest {
 
     SidebarManager* sidebar_manager = SidebarManager::GetInstance();
 
+    ui_test_utils::WindowedNotificationObserver observer(tab->controller());
     sidebar_manager->NavigateSidebar(tab, content_id_, url);
+    observer.Wait();
 
     SidebarContainer* sidebar_container =
         sidebar_manager->GetSidebarContainerFor(tab, content_id_);
 
     TabContents* client_contents = sidebar_container->sidebar_contents();
-    ui_test_utils::WaitForNavigation(&client_contents->controller());
   }
 
   void ShowSidebar(TabContents* tab) {
@@ -199,4 +200,3 @@ IN_PROC_BROWSER_TEST_F(SidebarTest, SidebarNavigate) {
 }
 
 }  // namespace
-