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

chrome/browser/spellchecker/spellcheck_hunspell_dictionary.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 "chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h"
 
 #include "base/file_util.h"
 #include "base/files/memory_mapped_file.h"
 #include "base/logging.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "chrome/browser/spellchecker/spellcheck_platform_mac.h"
 #include "chrome/browser/spellchecker/spellcheck_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/spellcheck_common.h"
 #include "chrome/common/spellcheck_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_fetcher.h"
@@ skipping 334 matching lines @@
 void SpellcheckHunspellDictionary::InformListenersOfInitialization() {
   FOR_EACH_OBSERVER(Observer, observers_, OnHunspellDictionaryInitialized());
 }
 
 void SpellcheckHunspellDictionary::InformListenersOfDownloadFailure() {
   download_status_ = DOWNLOAD_FAILED;
   FOR_EACH_OBSERVER(Observer,
                     observers_,
                     OnHunspellDictionaryDownloadFailure());
 }