Update EnsureProcessGetsReaped to receive a pid.

base/process/kill.h

 // Copyright (c) 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.
 
 // This file contains routines to kill processes and get the exit code and
 // termination status.
 
 #ifndef BASE_PROCESS_KILL_H_
 #define BASE_PROCESS_KILL_H_
 
@@ skipping 136 matching lines @@
 // On Linux this method does not block the calling thread.
 // On OS X this method may block for up to 2 seconds.
 //
 // NOTE: The process must have been opened with the PROCESS_TERMINATE and
 // SYNCHRONIZE permissions.
 //
 BASE_EXPORT void EnsureProcessTerminated(Process process);
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 // The nicer version of EnsureProcessTerminated() that is patient and will
-// wait for |process_handle| to finish and then reap it.
-BASE_EXPORT void EnsureProcessGetsReaped(ProcessHandle process_handle);
+// wait for |pid| to finish and then reap it.
+BASE_EXPORT void EnsureProcessGetsReaped(ProcessId pid);
 #endif
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_KILL_H_