Remove ScopedVector in //component/metrics

components/metrics/daily_event.cc

Index: components/metrics/daily_event.cc
diff --git a/components/metrics/daily_event.cc b/components/metrics/daily_event.cc
index 900a1d234c05addefd113badbcac0193f527ca9e..c289a0977f4e468bd52e4e406ec3499a91e9905c 100644
--- a/components/metrics/daily_event.cc
+++ b/components/metrics/daily_event.cc
@@ -96,9 +96,7 @@ void DailyEvent::OnInterval(base::Time now) {
   pref_service_->SetInt64(pref_name_, last_fired_.ToInternalValue());
 
   // Notify all observers
-  for (ScopedVector<DailyEvent::Observer>::iterator it = observers_.begin();
-       it != observers_.end();
-       ++it) {
+  for (auto it = observers_.begin(); it != observers_.end(); ++it) {
     (*it)->OnDailyEvent();
   }
 }