Use a direct include of the message_loop header in chrome/test/, chrome/tools/, chrome/utility/.

chrome/utility/local_discovery/service_discovery_client_impl.h

 // 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.
 
 #ifndef CHROME_UTILITY_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_IMPL_H_
 #define CHROME_UTILITY_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_IMPL_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/cancelable_callback.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "chrome/common/local_discovery/service_discovery_client.h"
 #include "net/dns/mdns_client.h"
 
 namespace local_discovery {
 
 class ServiceDiscoveryClientImpl : public ServiceDiscoveryClient {
  public:
   // |mdns_client| must outlive the Service Discovery Client.
   explicit ServiceDiscoveryClientImpl(net::MDnsClient* mdns_client);
   virtual ~ServiceDiscoveryClientImpl();
@@ skipping 156 matching lines @@
   ServiceDescription service_staging_;
 
   net::MDnsClient* mdns_client_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceResolverImpl);
 };
 
 }  // namespace local_discovery
 
 #endif  // CHROME_UTILITY_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_IMPL_H_