Mac Chromium style checker cleanup

content/browser/mach_broker_mac.cc

 // Copyright (c) 2011 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/mach_broker_mac.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 25 matching lines @@
     DCHECK(broker_);
     std::string port_name = MachBroker::GetMachPortName();
 
     // Create the receive port in the constructor, not in ThreadMain().  It is
     // important to create and register the receive port before starting the
     // thread so that child processes will always have someone who's listening.
     receive_port_.reset(new base::ReceivePort(port_name.c_str()));
   }
 
   // Implement |PlatformThread::Delegate|.
-  void ThreadMain() {
+  virtual void ThreadMain() OVERRIDE {
     base::MachReceiveMessage message;
     kern_return_t err;
     while ((err = receive_port_->WaitForMessage(&message,
                                                 MACH_MSG_TIMEOUT_NONE)) ==
            KERN_SUCCESS) {
       // 0 was the secret message id.  Reject any messages that don't have it.
       if (message.GetMessageID() != 0) {
         LOG(ERROR) << "Received message with incorrect id: "
                    << message.GetMessageID();
         continue;
@@ skipping 161 matching lines @@
                  NotificationService::AllBrowserContextsAndSources());
   registrar_.Add(this, NOTIFICATION_RENDERER_PROCESS_TERMINATED,
                  NotificationService::AllBrowserContextsAndSources());
   registrar_.Add(this, NOTIFICATION_CHILD_PROCESS_CRASHED,
                  NotificationService::AllBrowserContextsAndSources());
   registrar_.Add(this, NOTIFICATION_CHILD_PROCESS_HOST_DISCONNECTED,
                  NotificationService::AllBrowserContextsAndSources());
 }
 
 }  // namespace content