Switch to TimeDelta interfaces in chrome automation test infrastructure.

chrome/test/mini_installer_test/installer_test_util.cc

Index: chrome/test/mini_installer_test/installer_test_util.cc
diff --git a/chrome/test/mini_installer_test/installer_test_util.cc b/chrome/test/mini_installer_test/installer_test_util.cc
index 8565dfd3b35f99ec9459b7dfbf44c882c964f5f0..a9c6d5934e83c0e2a6db9554385d1c085d93f43a 100644
--- a/chrome/test/mini_installer_test/installer_test_util.cc
+++ b/chrome/test/mini_installer_test/installer_test_util.cc
@@ -291,7 +291,7 @@ bool RunAndWaitForCommandToFinish(CommandLine command) {
                << command.GetCommandLineString();
     return false;
   }
-  if (!base::WaitForSingleProcess(process, 60 * 1000)) {
+  if (!base::WaitForSingleProcess(process, base::TimeDelta::FromMinutes(1))) {
     LOG(ERROR) << "Launched process did not complete.";
     return false;
   }