Fix crash in SimpleGeolocationProvider.

chromeos/timezone/timezone_provider.cc

Index: chromeos/timezone/timezone_provider.cc
diff --git a/chromeos/timezone/timezone_provider.cc b/chromeos/timezone/timezone_provider.cc
index c9646c681bfafab199534f704a63b96b890eeffe..08e10e5359820e2b14efe859c3589f9cf00feac1 100644
--- a/chromeos/timezone/timezone_provider.cc
+++ b/chromeos/timezone/timezone_provider.cc
@@ -47,10 +47,13 @@ void TimeZoneProvider::OnTimezoneResponse(
     TimeZoneRequest::TimeZoneResponseCallback callback,
     scoped_ptr<TimeZoneResponseData> timezone,
     bool server_error) {
-  ScopedVector<TimeZoneRequest>::iterator new_end =
-      std::remove(requests_.begin(), requests_.end(), request);
-  DCHECK_EQ(std::distance(new_end, requests_.end()), 1);
-  requests_.erase(new_end, requests_.end());
+  ScopedVector<TimeZoneRequest>::iterator position =
+      std::find(requests_.begin(), requests_.end(), request);
+  DCHECK(position != requests_.end());
+  if (position != requests_.end()) {
+    std::swap(*position, *requests_.rbegin());
+    requests_.resize(requests_.size() - 1);
+  }
 
   callback.Run(timezone.Pass(), server_error);
 }