POSIX: don't spawn zombies.

base/process_posix.cc

 // Copyright (c) 2008 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.h"
 #include "base/process_util.h"
 
 namespace base {
 
 void Process::Close() {
   process_ = 0;
   // if the process wasn't termiated (so we waited) or the state
   // wasn't already collected w/ a wait from process_utils, we're gonna
   // end up w/ a zombie when it does finally exit.
 }
 
 void Process::Terminate(int result_code) {
   // result_code isn't supportable.
   if (!process_)
     return;
-  // Wait so we clean up the zombie
-  KillProcess(process_, result_code, true);
+  // We don't wait here. It's the responsibility of other code to reap the
+  // child.
+  KillProcess(process_, result_code, false);
 }
 
 bool Process::IsProcessBackgrounded() const {
   // http://code.google.com/p/chromium/issues/detail?id=8083
   return false;
 }
 
 bool Process::SetProcessBackgrounded(bool value) {
   // http://code.google.com/p/chromium/issues/detail?id=8083
   // Just say we did it to keep renderer happy at the moment.  Need to finish
@@ skipping 27 matching lines @@
 bool Process::is_current() const {
   return process_ == GetCurrentProcessHandle();
 }
 
 // static
 Process Process::Current() {
   return Process(GetCurrentProcessHandle());
 }
 
 }  // namspace base