POSIX: don't spawn zombies.

base/process_util_win.cc

Index: base/process_util_win.cc
diff --git a/base/process_util_win.cc b/base/process_util_win.cc
index 13fec9aab8c1d2d60c390bb08f24f306c0beabcd..fc0566457c62bf908bd3d3c78d80b43b889f5431 100644
--- a/base/process_util_win.cc
+++ b/base/process_util_win.cc
@@ -270,8 +270,12 @@ bool KillProcess(ProcessHandle process, int exit_code, bool wait) {
   return result;
 }
 
-bool DidProcessCrash(ProcessHandle handle) {
+bool DidProcessCrash(bool* child_exited, ProcessHandle handle) {
   DWORD exitcode = 0;
+
+  if (child_exited)
+    *child_exited = true;  // On Windows it an error to call this function if
+                           // the child hasn't already exited.
   if (!::GetExitCodeProcess(handle, &exitcode)) {
     NOTREACHED();
     return false;