Use a direct include of the message_loop header in chrome/browser/, part 10.

chrome/browser/signin/oauth2_token_service.cc

 // Copyright 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/signin/oauth2_token_service.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/rand_util.h"
 #include "base/stl_util.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "content/public/browser/browser_thread.h"
 #include "google_apis/gaia/gaia_urls.h"
 #include "google_apis/gaia/google_service_auth_error.h"
 #include "google_apis/gaia/oauth2_access_token_consumer.h"
 #include "google_apis/gaia/oauth2_access_token_fetcher.h"
 #include "net/url_request/url_request_context_getter.h"
@@ skipping 466 matching lines @@
 
 int OAuth2TokenService::cache_size_for_testing() const {
   return token_cache_.size();
 }
 
 void OAuth2TokenService::set_max_authorization_token_fetch_retries_for_testing(
     int max_retries) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   max_fetch_retry_num_ = max_retries;
 }