Add OVERRIDE to ipc/.

ipc/ipc_channel_posix.h

 // 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.
 
 #ifndef IPC_IPC_CHANNEL_POSIX_H_
 #define IPC_IPC_CHANNEL_POSIX_H_
 #pragma once
 
 #include "ipc/ipc_channel.h"
 
@@ skipping 64 matching lines @@
   bool ProcessIncomingMessages();
   bool ProcessOutgoingMessages();
 
   bool AcceptConnection();
   void ClosePipeOnError();
   int GetHelloMessageProcId();
   void QueueHelloMessage();
   bool IsHelloMessage(const Message* m) const;
 
   // MessageLoopForIO::Watcher implementation.
-  virtual void OnFileCanReadWithoutBlocking(int fd);
-  virtual void OnFileCanWriteWithoutBlocking(int fd);
+  virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE;
+  virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE;
 
   Mode mode_;
 
   // After accepting one client connection on our server socket we want to
   // stop listening.
   MessageLoopForIO::FileDescriptorWatcher server_listen_connection_watcher_;
   MessageLoopForIO::FileDescriptorWatcher read_watcher_;
   MessageLoopForIO::FileDescriptorWatcher write_watcher_;
 
   // Indicates whether we're currently blocked waiting for a write to complete.
@@ skipping 66 matching lines @@
 
 // The maximum length of the name of a pipe for MODE_NAMED_SERVER or
 // MODE_NAMED_CLIENT if you want to pass in your own socket.
 // The standard size on linux is 108, mac is 104. To maintain consistency
 // across platforms we standardize on the smaller value.
 static const size_t kMaxPipeNameLength = 104;
 
 }  // namespace IPC
 
 #endif  // IPC_IPC_CHANNEL_POSIX_H_