Update from https://crrev.com/312398

base/process/kill_posix.cc

 // 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.
 
 #include "base/process/kill.h"
 
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
@@ skipping 455 matching lines @@
 void EnsureProcessTerminated(Process process) {
   // If the child is already dead, then there's nothing to do.
   if (IsChildDead(process.pid()))
     return;
 
   const unsigned timeout = 2;  // seconds
   BackgroundReaper* reaper = new BackgroundReaper(process.pid(), timeout);
   PlatformThread::CreateNonJoinable(0, reaper);
 }
 
-void EnsureProcessGetsReaped(ProcessHandle process) {
+void EnsureProcessGetsReaped(ProcessId pid) {
   // If the child is already dead, then there's nothing to do.
-  if (IsChildDead(process))
+  if (IsChildDead(pid))
     return;
 
-  BackgroundReaper* reaper = new BackgroundReaper(process, 0);
+  BackgroundReaper* reaper = new BackgroundReaper(pid, 0);
   PlatformThread::CreateNonJoinable(0, reaper);
 }
 
 #endif  // !defined(OS_MACOSX)
 #endif  // !defined(OS_NACL_NONSFI)
 
 }  // namespace base