Add RetainedRef uses where needed.

chrome/browser/captive_portal/captive_portal_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 <map>
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 2778 matching lines @@
 // in.
 IN_PROC_BROWSER_TEST_F(CaptivePortalBrowserTest, HstsLogin) {
   GURL::Replacements replacements;
   replacements.SetSchemeStr("http");
   GURL http_timeout_url = GURL(kMockHttpsUrl).ReplaceComponents(replacements);
 
   URLRequestFailedJob::GetMockHttpUrl(net::ERR_CONNECTION_TIMED_OUT);
   content::BrowserThread::PostTask(
       content::BrowserThread::IO, FROM_HERE,
       base::Bind(&AddHstsHost,
-                 make_scoped_refptr(browser()->profile()->GetRequestContext()),
+                 base::RetainedRef(browser()->profile()->GetRequestContext()),
                  http_timeout_url.host()));
 
   SlowLoadBehindCaptivePortal(browser(), true, http_timeout_url, 1, 1);
   Login(browser(), 1, 0);
   FailLoadsAfterLogin(browser(), 1);
 }
 
 // A slow SSL load starts. The reloader triggers a captive portal check, finds a
 // captive portal. The SSL commits with a cert error, triggering another captive
 // portal check.
@@ skipping 26 matching lines @@
 
   EXPECT_EQ(CaptivePortalTabReloader::STATE_NEEDS_RELOAD,
             GetStateOfTabReloaderAt(browser(), broken_tab_index));
 
   WaitForInterstitialAttach(broken_tab_contents);
   portal_observer.WaitForResults(1);
 
   EXPECT_EQ(SSLBlockingPage::kTypeForTesting,
             GetInterstitialType(broken_tab_contents));
 }