Use a direct include of the message_loop header in content/, part 1.

content/browser/geolocation/geolocation_provider_impl.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 "content/browser/geolocation/geolocation_provider_impl.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "content/browser/geolocation/location_arbitrator_impl.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace content {
 
 namespace {
 void OverrideLocationForTestingOnIOThread(
     const Geoposition& position,
     const base::Closure& completion_callback,
     scoped_refptr<base::MessageLoopProxy> callback_loop) {
@@ skipping 203 matching lines @@
   arbitrator_ = NULL;
 }
 
 GeolocationArbitrator* GeolocationProviderImpl::CreateArbitrator() {
   GeolocationArbitratorImpl::LocationUpdateCallback callback = base::Bind(
       &GeolocationProviderImpl::OnLocationUpdate, base::Unretained(this));
   return new GeolocationArbitratorImpl(callback);
 }
 
 }  // namespace content