Use a direct include of the message_loop header in cc/, chrome_frame/, cloud_print/, components.

components/autofill/content/browser/autocheckout/whitelist_manager_unittest.cc

 // Copyright 2013 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 <cmath>
 
 #include "base/command_line.h"
 #include "base/format_macros.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "components/autofill/content/browser/autocheckout/whitelist_manager.h"
 #include "components/autofill/core/browser/autofill_metrics.h"
 #include "components/autofill/core/common/autofill_switches.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/test_url_fetcher_factory.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "net/url_request/url_request_status.h"
@@ skipping 278 matching lines @@
                 GURL("https://cart.merchant2.com/ShippingInfo?a=b&c=d")));
   // Bypass other urls.
   EXPECT_EQ(std::string("https://bypass.me/"),
             whitelist_manager_->GetMatchedURLPrefix(
                 GURL("https://bypass.me/")));
 }
 
 }  // namespace autocheckout
 }  // namespace autofill