cros: Tighten profile loading

chrome/browser/chromeos/system/system_clock.cc

Index: chrome/browser/chromeos/system/system_clock.cc
diff --git a/chrome/browser/chromeos/system/system_clock.cc b/chrome/browser/chromeos/system/system_clock.cc
index 3c921661529b0b3cb1f431f1f765a78b33eb094f..7aa0bcc35c21f0923882a56fb59d6dede480e35f 100644
--- a/chrome/browser/chromeos/system/system_clock.cc
+++ b/chrome/browser/chromeos/system/system_clock.cc
@@ -122,8 +122,9 @@ void SystemClock::Observe(int type,
   }
 }
 
-void SystemClock::ActiveUserChanged(const user_manager::User* /*user*/) {
-  UpdateClockType();
+void SystemClock::ActiveUserChanged(const user_manager::User* active_user) {
+  if (active_user && active_user->is_profile_created())
+    UpdateClockType();
 }
 
 void SystemClock::AddObserver(SystemClockObserver* observer) {
@@ -142,6 +143,7 @@ void SystemClock::OnActiveProfileChanged(Profile* profile) {
   user_pref_registrar_->Add(
       prefs::kUse24HourClock,
       base::Bind(&SystemClock::UpdateClockType, base::Unretained(this)));
+  UpdateClockType();
 }
 
 bool SystemClock::OnProfileDestroyed(Profile* profile) {