Remove calls to deprecated MessageLoop methods on Windows and Linux.

net/tools/net_watcher/net_watcher.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.
 
 // This is a small utility that watches for and logs network changes.
 // It prints out the current network connection type and proxy configuration
 // upon startup and then prints out changes as they happen.
 // It's useful for testing NetworkChangeNotifier and ProxyConfigService.
 // The only command line option supported is --ignore-netif which is followed
 // by a comma seperated list of network interfaces to ignore when computing
 // connection type; this option is only supported on linux.
 
 #include <memory>
 #include <string>
 #include <unordered_set>
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
 #include "base/strings/string_split.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "net/base/network_change_notifier.h"
 #include "net/proxy/proxy_config.h"
 #include "net/proxy/proxy_config_service.h"
 #include "net/proxy/proxy_service.h"
 
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 #include "net/base/network_change_notifier_linux.h"
@@ skipping 165 matching lines @@
     const net::ProxyConfigService::ConfigAvailability availability =
         proxy_config_service->GetLatestProxyConfig(&config);
     LOG(INFO) << "Initial proxy config: "
               << ProxyConfigToString(config) << ", "
               << ConfigAvailabilityToString(availability);
   }
 
   LOG(INFO) << "Watching for network events...";
 
   // Start watching for events.
-  network_loop.Run();
+  base::RunLoop().Run();
 
   proxy_config_service->RemoveObserver(&net_watcher);
 
   // Uses |network_change_notifier|.
   net::NetworkChangeNotifier::RemoveDNSObserver(&net_watcher);
   net::NetworkChangeNotifier::RemoveConnectionTypeObserver(&net_watcher);
   net::NetworkChangeNotifier::RemoveIPAddressObserver(&net_watcher);
   net::NetworkChangeNotifier::RemoveNetworkChangeObserver(&net_watcher);
 
   return 0;
 }