Use valid /prefetch arguments for process launches on Windows. - do not submit

cloud_print/service/win/chrome_launcher.cc

Index: cloud_print/service/win/chrome_launcher.cc
diff --git a/cloud_print/service/win/chrome_launcher.cc b/cloud_print/service/win/chrome_launcher.cc
index 5c9013aa9a098bf5d73a89cc32e1a15dcff36a53..5595f0060b5d388d81df75ee746f485c8a0bbb29 100644
--- a/cloud_print/service/win/chrome_launcher.cc
+++ b/cloud_print/service/win/chrome_launcher.cc
@@ -20,6 +20,7 @@
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
+#include "chrome/common/prefetch_argument_win.h"
 #include "chrome/installer/launcher_support/chrome_launcher_support.h"
 #include "cloud_print/common/win/cloud_print_utils.h"
 #include "cloud_print/service/service_constants.h"
@@ -211,6 +212,7 @@ void ChromeLauncher::Run() {
 
       // Required switches.
       cmd.AppendSwitchASCII(switches::kProcessType, switches::kServiceProcess);
+      chrome::AddWindowsPrefetchArgument(&cmd);
       cmd.AppendSwitchPath(switches::kUserDataDir, user_data_);
       cmd.AppendSwitch(switches::kNoServiceAutorun);