Revert "content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs"

content/browser/geofencing/geofencing_service.cc

 // Copyright 2014 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/geofencing/geofencing_service.h"
 
-#include "base/location.h"
 #include "base/memory/singleton.h"
-#include "base/single_thread_task_runner.h"
-#include "base/thread_task_runner_handle.h"
+#include "base/message_loop/message_loop.h"
 #include "content/browser/geofencing/geofencing_provider.h"
 #include "content/browser/geofencing/geofencing_registration_delegate.h"
 #include "content/public/browser/browser_thread.h"
 #include "third_party/WebKit/public/platform/WebCircularGeofencingRegion.h"
 
 namespace content {
 
 namespace {
 
 void RunSoon(const base::Closure& callback) {
   if (!callback.is_null())
-    base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, callback);
+    base::MessageLoop::current()->PostTask(FROM_HERE, callback);
 }
 
 }  // namespace
 
 struct GeofencingServiceImpl::Registration {
   Registration();
   Registration(const blink::WebCircularGeofencingRegion& region,
                int64 geofencing_registration_id,
                GeofencingRegistrationDelegate* delegate);
 
@@ skipping 159 matching lines @@
   registration_iterator->second.delegate->RegistrationFinished(
       geofencing_registration_id, status);
 
   if (status != GEOFENCING_STATUS_OK) {
     // Registration failed, remove from our book-keeping.
     registrations_.erase(registration_iterator);
   }
 }
 
 }  // namespace content