FBTF: Remove unneeded headers from base/ (part 2)

ipc/ipc_logging.h

 // Copyright (c) 2009 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.
 
 #ifdef IPC_MESSAGE_LOG_ENABLED
 
 #include <vector>
 
 #include "base/message_loop.h"
 #include "base/scoped_ptr.h"
 #include "base/singleton.h"
-#include "base/waitable_event_watcher.h"
 
 namespace IPC {
 
 class Message;
 
 // One instance per process.  Needs to be created on the main thread (the UI
 // thread in the browser) but OnPreDispatchMessage/OnPostDispatchMessage
 // can be called on other threads.
 class Logging {
  public:
@@ skipping 69 matching lines @@
   Consumer* consumer_;
 
   static LogFunction *log_function_mapping_;
 };
 
 }  // namespace IPC
 
 #endif // IPC_MESSAGE_LOG_ENABLED
 
 #endif  // IPC_IPC_LOGGING_H_