Remove implicit conversions from scoped_refptr to T* in c/b/chromeos/policy

chrome/browser/chromeos/policy/wildcard_login_checker.cc

 // Copyright 2014 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/chromeos/policy/wildcard_login_checker.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 26 matching lines @@
 void WildcardLoginChecker::Start(
     scoped_refptr<net::URLRequestContextGetter> signin_context,
     const StatusCallback& callback) {
   CHECK(!token_fetcher_);
   CHECK(!user_info_fetcher_);
 
   start_timestamp_ = base::Time::Now();
 
   callback_ = callback;
   token_fetcher_.reset(new PolicyOAuth2TokenFetcher(
-      signin_context,
+      signin_context.get(),
       g_browser_process->system_request_context(),
       base::Bind(&WildcardLoginChecker::OnPolicyTokenFetched,
                  base::Unretained(this))));
   token_fetcher_->Start();
 }
 
 void WildcardLoginChecker::StartWithAccessToken(
     const std::string& access_token,
     const StatusCallback& callback) {
   CHECK(!token_fetcher_);
@@ skipping 48 matching lines @@
       new UserInfoFetcher(this, g_browser_process->system_request_context()));
   user_info_fetcher_->Start(access_token);
 }
 
 void WildcardLoginChecker::OnCheckCompleted(Result result) {
   if (!callback_.is_null())
     callback_.Run(result);
 }
 
 }  // namespace policy