Switch to TimeDelta interface for process waiting functions in base.

base/process_util_posix.cc

Index: base/process_util_posix.cc
diff --git a/base/process_util_posix.cc b/base/process_util_posix.cc
index 410e99c86db90fc94c72f8c48a2fa25e76a30610..98c438f7dccc062876693d8d4c94d6c4d21363a6 100644
--- a/base/process_util_posix.cc
+++ b/base/process_util_posix.cc
@@ -1249,8 +1249,10 @@ bool CleanupProcesses(const FilePath::StringType& executable_name,
                       int exit_code,
                       const ProcessFilter* filter) {
   bool exited_cleanly =
-      WaitForProcessesToExit(executable_name, wait_milliseconds,
-                             filter);
+      WaitForProcessesToExit(
+          executable_name,
+          base::TimeDelta::FromMilliseconds(wait_milliseconds),
+          filter);
   if (!exited_cleanly)
     KillProcesses(executable_name, exit_code, filter);
   return exited_cleanly;