google_apis: Migrate callers of message_loop_proxy() to task_runner()

google_apis/gaia/gaia_auth_fetcher_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.
 //
 // A complete set of unit tests for GaiaAuthFetcher.
 // Originally ported from GoogleAuthenticator tests.
 
 #include <string>
 
 #include "base/json/json_reader.h"
@@ skipping 138 matching lines @@
   GURL oauth2_token_source_;
   GURL token_auth_source_;
   GURL merge_session_source_;
   GURL uberauth_token_source_;
   GURL oauth_login_gurl_;
 
  protected:
   net::TestURLRequestContextGetter* GetRequestContext() {
     if (!request_context_getter_.get()) {
       request_context_getter_ = new net::TestURLRequestContextGetter(
-          message_loop_.message_loop_proxy());
+          message_loop_.task_runner());
     }
     return request_context_getter_.get();
   }
 
   base::MessageLoop message_loop_;
   scoped_refptr<net::TestURLRequestContextGetter> request_context_getter_;
 };
 
 class MockGaiaConsumer : public GaiaAuthConsumer {
  public:
@@ skipping 720 matching lines @@
   GaiaAuthFetcher auth(&consumer, std::string(), GetRequestContext());
   auth.StartGetTokenResponse(std::string(), std::string(), std::string());
 
   net::URLRequestStatus status(net::URLRequestStatus::SUCCESS, 0);
   MockFetcher mock_fetcher(
       GaiaUrls::GetInstance()->oauth2_iframe_url(),
       status, net::HTTP_OK, cookies_, kGetTokenPairValidResponse,
       net::URLFetcher::GET, &auth);
   auth.OnURLFetchComplete(&mock_fetcher);
 }