Allow showing pending URL for new tab navigations, but only if safe.

chrome/browser/managed_mode/managed_mode_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 "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/infobars/confirm_infobar_delegate.h"
 #include "chrome/browser/infobars/infobar.h"
@@ skipping 155 matching lines @@
           content::Details<InfoBarAddedDetails>(infobar_added.details()).ptr();
       ConfirmInfoBarDelegate* confirm_info_bar_delegate =
           info_bar_delegate->AsConfirmInfoBarDelegate();
       ASSERT_TRUE(confirm_info_bar_delegate);
 
       content::WindowedNotificationObserver infobar_removed(
           chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED,
           content::NotificationService::AllSources());
       InfoBarService* infobar_service =
           InfoBarService::FromWebContents(tab);
+      content::WindowedNotificationObserver back_observer(
+          content::NOTIFICATION_LOAD_STOP,
+          content::Source<NavigationController>(&tab->GetController()));
 
       switch (infobar_action) {
         case INFOBAR_ACCEPT:
           confirm_info_bar_delegate->InfoBarDismissed();
           ASSERT_TRUE(confirm_info_bar_delegate->Accept());
           infobar_service->RemoveInfoBar(confirm_info_bar_delegate);
           break;
         case INFOBAR_CANCEL:
           confirm_info_bar_delegate->InfoBarDismissed();
           ASSERT_FALSE(confirm_info_bar_delegate->Cancel());
+          back_observer.Wait();
           infobar_service->RemoveInfoBar(confirm_info_bar_delegate);
           break;
         case INFOBAR_ALREADY_ADDED:
           confirm_info_bar_delegate->InfoBarDismissed();
           infobar_service->RemoveInfoBar(confirm_info_bar_delegate);
           break;
         case INFOBAR_NOT_USED:
           NOTREACHED();
           break;
       }
@@ skipping 411 matching lines @@
       interstitial_page->GetDelegateForTesting();
 
   // Simulate the click on the "preview" button.
   delegate->CommandReceived("\"preview\"");
   WebContentsModalDialogManager* web_contents_modal_dialog_manager =
       WebContentsModalDialogManager::FromWebContents(tab);
   EXPECT_TRUE(web_contents_modal_dialog_manager->IsShowingDialog());
 }
 
 }  // namespace