Fix TestCancelAuth_OnNavigation for PlzNavigation

chrome/browser/ui/login/login_handler_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.
 
 #include <algorithm>
 #include <list>
 #include <map>
 
 #include "base/metrics/field_trial.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 343 matching lines @@
   const GURL kAuthURL = embedded_test_server()->GetURL(kAuthBasicPage);
   const GURL kNoAuthURL = embedded_test_server()->GetURL(kNoAuthPage1);
 
   NavigationController* controller =
       &browser()->tab_strip_model()->GetActiveWebContents()->GetController();
 
   LoginPromptBrowserTestObserver observer;
   observer.Register(content::Source<NavigationController>(controller));
 
   // One LOAD_STOP event for LoginInterstitial, second for kAuthURL and third
-  // for kNoAuthURL.
-  const int kLoadStopEvents = 3;
+  // for kNoAuthURL, unless PlzNavigate is active, in which case the
+  // interrupted ongoing navigation does not receive LOAD_STOP.
+  const int kLoadStopEvents = content::IsBrowserSideNavigationEnabled() ? 2 : 3;
   WindowedLoadStopObserver load_stop_waiter(controller, kLoadStopEvents);
   WindowedAuthNeededObserver auth_needed_waiter(controller);
   browser()->OpenURL(OpenURLParams(kAuthURL, Referrer(),
                                    WindowOpenDisposition::CURRENT_TAB,
                                    ui::PAGE_TRANSITION_TYPED, false));
   auth_needed_waiter.Wait();
   WindowedAuthCancelledObserver auth_cancelled_waiter(controller);
   // Navigating while auth is requested is the same as cancelling.
   browser()->OpenURL(OpenURLParams(kNoAuthURL, Referrer(),
                                    WindowOpenDisposition::CURRENT_TAB,
@@ skipping 1118 matching lines @@
   // out.
   EXPECT_TRUE(
       WaitForRenderFrameReady(contents->GetInterstitialPage()->GetMainFrame()));
   EXPECT_TRUE(contents->ShowingInterstitialPage());
   EXPECT_EQ(SSLBlockingPage::kTypeForTesting, contents->GetInterstitialPage()
                                                   ->GetDelegateForTesting()
                                                   ->GetTypeForTesting());
 }
 
 }  // namespace