Quit immediately in TestNavigationObserver.

chrome/test/base/ui_test_utils.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.
 
 #include "chrome/test/base/ui_test_utils.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 162 matching lines @@
     Browser* browser,
     const GURL& url,
     int number_of_navigations,
     WindowOpenDisposition disposition,
     int browser_test_flags) {
   TabStripModel* tab_strip = browser->tab_strip_model();
   if (disposition == WindowOpenDisposition::CURRENT_TAB &&
       tab_strip->GetActiveWebContents())
     content::WaitForLoadStop(tab_strip->GetActiveWebContents());
   content::TestNavigationObserver same_tab_observer(
-      tab_strip->GetActiveWebContents(),
-      number_of_navigations);
+      tab_strip->GetActiveWebContents(), number_of_navigations,
+      content::MessageLoopRunner::QuitMode::DEFERRED);
 
   std::set<Browser*> initial_browsers;
   for (auto* browser : *BrowserList::GetInstance())
     initial_browsers.insert(browser);
 
   content::WindowedNotificationObserver tab_added_observer(
       chrome::NOTIFICATION_TAB_ADDED,
       content::NotificationService::AllSources());
 
   browser->OpenURL(OpenURLParams(
@@ skipping 19 matching lines @@
   } else if ((disposition == WindowOpenDisposition::CURRENT_TAB) ||
              (disposition == WindowOpenDisposition::NEW_FOREGROUND_TAB) ||
              (disposition == WindowOpenDisposition::SINGLETON_TAB)) {
     // The currently selected tab is the right one.
     web_contents = browser->tab_strip_model()->GetActiveWebContents();
   }
   if (disposition == WindowOpenDisposition::CURRENT_TAB) {
     same_tab_observer.Wait();
     return;
   } else if (web_contents) {
-    content::TestNavigationObserver observer(web_contents,
-                                             number_of_navigations);
+    content::TestNavigationObserver observer(
+        web_contents, number_of_navigations,
+        content::MessageLoopRunner::QuitMode::DEFERRED);
     observer.Wait();
     return;
   }
   EXPECT_TRUE(NULL != web_contents) << " Unable to wait for navigation to \""
                                     << url.spec() << "\""
                                     << " because we can't get the tab contents";
 }
 
 void NavigateToURLWithDisposition(Browser* browser,
                                   const GURL& url,
@@ skipping 325 matching lines @@
   if (browser != browser_)
     return;
 
   observed_ = true;
   BrowserList::RemoveObserver(this);
   if (message_loop_runner_.get() && message_loop_runner_->loop_running())
     message_loop_runner_->Quit();
 }
 
 }  // namespace ui_test_utils