Remove calls to deprecated MessageLoop methods in tools.

tools/ipc_fuzzer/message_replay/replay_process.cc

 // 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.
 
 #include "tools/ipc_fuzzer/message_replay/replay_process.h"
 
 #include <limits.h>
 #include <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/posix/global_descriptors.h"
+#include "base/run_loop.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/mojo_channel_switches.h"
 #include "ipc/ipc_descriptors.h"
 #include "ipc/ipc_switches.h"
 #include "ipc/mojo/ipc_channel_mojo.h"
 #include "mojo/edk/embedder/embedder.h"
 #include "mojo/edk/embedder/platform_channel_pair.h"
 #include "mojo/edk/embedder/scoped_ipc_support.h"
@@ skipping 125 matching lines @@
     base::MessageLoop::current()->QuitWhenIdle();
   }
 }
 
 void ReplayProcess::Run() {
   timer_.reset(new base::Timer(false, true));
   timer_->Start(FROM_HERE,
                 base::TimeDelta::FromMilliseconds(1),
                 base::Bind(&ReplayProcess::SendNextMessage,
                            base::Unretained(this)));
-  base::MessageLoop::current()->Run();
+  base::RunLoop().Run();
 }
 
 bool ReplayProcess::OnMessageReceived(const IPC::Message& msg) {
   return true;
 }
 
 void ReplayProcess::OnChannelError() {
   LOG(ERROR) << "Channel error, quitting after "
              << message_index_ << " messages";
   base::MessageLoop::current()->QuitWhenIdle();
 }
 
 }  // namespace ipc_fuzzer