Update uses of TimeDelta in audio code.

media/audio/cross_process_notification_unittest.cc

Index: media/audio/cross_process_notification_unittest.cc
diff --git a/media/audio/cross_process_notification_unittest.cc b/media/audio/cross_process_notification_unittest.cc
index dbf38d9d89d91d31ea5938238e3ea94cf58fde2a..a5ff7b0f2df712faa89b4ee5f5b2086b5ab61417 100644
--- a/media/audio/cross_process_notification_unittest.cc
+++ b/media/audio/cross_process_notification_unittest.cc
@@ -410,7 +410,7 @@ MULTIPROCESS_TEST_MAIN(CrossProcessNotificationChildMain) {
   CrudeIpc* ipc = reinterpret_cast<CrudeIpc*>(mem.memory());
 
   while (!ipc->ready)
-    base::PlatformThread::Sleep(10);
+    base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds(10));
 
   CrossProcessNotification notifier(ipc->handle_1, ipc->handle_2);
   notifier.Wait();