Made launcher hidden when kicking off chrome in app mode.

chrome/common/switch_utils.cc

Index: chrome/common/switch_utils.cc
diff --git a/chrome/common/switch_utils.cc b/chrome/common/switch_utils.cc
index 507df93c93c36a19ddf189ffd1e030e5fc072ae9..a29445789738be75b470ebfbf537fe969d740775 100644
--- a/chrome/common/switch_utils.cc
+++ b/chrome/common/switch_utils.cc
@@ -30,4 +30,11 @@ void RemoveSwitchesForAutostart(
     switch_list->erase(kSwitchesToRemoveOnAutorestart[i]);
 }
 
+bool IsRunningInAppMode() {
+  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  return command_line->HasSwitch(switches::kKioskMode) ||
+      (command_line->HasSwitch(switches::kForceAppMode) &&
+      command_line->HasSwitch(switches::kAppId));
+}
+
 }  // namespace switches