Fix CleanupProcesses() interface to use TimeDelta.

base/process_util.h

Index: base/process_util.h
diff --git a/base/process_util.h b/base/process_util.h
index 6745d4b27a9c7cbd9478dd670c4018a28547d8d8..04c1d88d2b80b244016d57adca68438cb7674085 100644
--- a/base/process_util.h
+++ b/base/process_util.h
@@ -532,7 +532,7 @@ BASE_EXPORT bool WaitForSingleProcess(ProcessHandle handle,
 // any processes needed to be killed, true if they all exited cleanly within
 // the wait_milliseconds delay.
 BASE_EXPORT bool CleanupProcesses(const FilePath::StringType& executable_name,
-                                  int64 wait_milliseconds,
+                                  base::TimeDelta wait,
                                   int exit_code,
                                   const ProcessFilter* filter);