Follow up to https://codereview.chromium.org/1581473002 for Metro removal in installer

chrome/installer/util/install_util.cc

Index: chrome/installer/util/install_util.cc
diff --git a/chrome/installer/util/install_util.cc b/chrome/installer/util/install_util.cc
index bfb888c2cd7d7d08d6aa69cade5603a0a334a5f7..6eb1b66adab2adf30aa3893a603ad17785444798 100644
--- a/chrome/installer/util/install_util.cc
+++ b/chrome/installer/util/install_util.cc
@@ -154,9 +154,8 @@ void InstallUtil::TriggerActiveSetupCommand() {
   // and the time setup.exe checks for it.
   cmd.AppendSwitch(installer::switches::kForceConfigureUserSettings);
 
-  base::LaunchOptions launch_options;
   base::Process process =
-      base::LaunchProcess(cmd.GetCommandLineString(), launch_options);
+      base::LaunchProcess(cmd.GetCommandLineString(), base::LaunchOptions());
   if (!process.IsValid())
     PLOG(ERROR) << cmd.GetCommandLineString();
 }