Fix material Help page redirect, again

chrome/browser/browser_about_handler_unittest.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/browser/browser_about_handler.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 107 matching lines @@
       features::kMaterialDesignSettingsFeature.name, "");
   base::FeatureList::ClearInstanceForTesting();
   base::FeatureList::SetInstance(std::move(feature_list));
 
   std::string chrome_prefix(content::kChromeUIScheme);
   chrome_prefix.append(url::kStandardSchemeSeparator);
   std::vector<AboutURLTestCase> test_cases(
       {{GURL(chrome_prefix + chrome::kChromeUISettingsHost),
         GURL(chrome_prefix + chrome::kChromeUISettingsHost)},
        {GURL(chrome_prefix + chrome::kChromeUIHelpHost),
-        GURL(chrome_prefix + chrome::kChromeUIHelpHost)}});
+        GURL(chrome_prefix + chrome::kChromeUISettingsHost + "/" +
+             chrome::kChromeUIHelpHost)}});
   TestWillHandleBrowserAboutURL(test_cases);
 }
 
 // Ensure that minor BrowserAboutHandler fixup to a URL does not cause us to
 // keep a separate virtual URL, which would not be updated on redirects.
 // See https://crbug.com/449829.
 TEST_F(BrowserAboutHandlerTest, NoVirtualURLForFixup) {
   GURL url("view-source:http://.foo");
 
   // Fixup will remove the dot and add a slash.
   GURL fixed_url("view-source:http://foo/");
 
   // Rewriters will remove the view-source prefix and expect it to stay in the
   // virtual URL.
   GURL rewritten_url("http://foo/");
 
   TestingProfile profile;
   std::unique_ptr<NavigationEntry> entry(
       NavigationController::CreateNavigationEntry(
           url, Referrer(), ui::PAGE_TRANSITION_RELOAD, false, std::string(),
           &profile));
   EXPECT_EQ(fixed_url, entry->GetVirtualURL());
   EXPECT_EQ(rewritten_url, entry->GetURL());
 }