ipc: remove an unused function prototype

ipc/ipc_logging.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_LOGGING_H_
 #define IPC_IPC_LOGGING_H_
 #pragma once
 
 #include "ipc/ipc_message.h"  // For IPC_MESSAGE_LOG_ENABLED.
 
@@ skipping 51 matching lines @@
 
   // Called in the browser process when logging data from a child process is
   // received.
   void OnReceivedLoggingMessage(const Message& message);
 
   void OnSendMessage(Message* message, const std::string& channel_id);
   void OnPreDispatchMessage(const Message& message);
   void OnPostDispatchMessage(const Message& message,
                              const std::string& channel_id);
 
-  // Returns the name of the logging enabled/disabled events so that the
-  // sandbox can add them to to the policy.  If true, gets the name of the
-  // enabled event, if false, gets the name of the disabled event.
-  static std::wstring GetEventName(bool enabled);
-
   // Like the *MsgLog functions declared for each message class, except this
   // calls the correct one based on the message type automatically.  Defined in
   // ipc_logging.cc.
   static void GetMessageText(uint32 type, std::string* name,
                              const Message* message, std::string* params);
 
   static void set_log_function_map(LogFunctionMap* functions) {
     log_function_map_ = functions;
   }
 
@@ skipping 20 matching lines @@
   Consumer* consumer_;
 
   static LogFunctionMap* log_function_map_;
 };
 
 }  // namespace IPC
 
 #endif // IPC_MESSAGE_LOG_ENABLED
 
 #endif  // IPC_IPC_LOGGING_H_