Sooper experimental refactoring of the profile info cache.

chrome/browser/ui/webui/options/create_profile_handler.cc

Index: chrome/browser/ui/webui/options/create_profile_handler.cc
diff --git a/chrome/browser/ui/webui/options/create_profile_handler.cc b/chrome/browser/ui/webui/options/create_profile_handler.cc
index f88baccd631d6b44560ebe18424556d0957ccf1c..ef8c13c948225ca2de7904e9792e8f42cb9ff992 100644
--- a/chrome/browser/ui/webui/options/create_profile_handler.cc
+++ b/chrome/browser/ui/webui/options/create_profile_handler.cc
@@ -424,8 +424,11 @@ bool CreateProfileHandler::IsValidExistingManagedUserId(
   // Check if this managed user already exists on this machine.
   const ProfileInfoCache& cache =
       g_browser_process->profile_manager()->GetProfileInfoCache();
-  for (size_t i = 0; i < cache.GetNumberOfProfiles(); ++i) {
-    if (existing_managed_user_id == cache.GetManagedUserIdOfProfileAtIndex(i))
+
+  const std::vector<ProfileInfoEntry> entries(cache.GetProfilesSortedByName());
+  for (std::vector<ProfileInfoEntry>::const_iterator it = entries.begin();
+      it != entries.end(); ++it) {
+    if (existing_managed_user_id == it->managed_user_id())
       return false;
   }
   return true;