[cros] Display emails of users are stored in a separate dictionary in Local State.

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

Index: chrome/browser/ui/webui/options/personal_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/personal_options_handler.cc b/chrome/browser/ui/webui/options/personal_options_handler.cc
index d08025d81621e70b2e58f44f9385857fefa83a59..0bba9fc399bb87618a216abdf4a2b4d29442ef78 100644
--- a/chrome/browser/ui/webui/options/personal_options_handler.cc
+++ b/chrome/browser/ui/webui/options/personal_options_handler.cc
@@ -205,7 +205,7 @@ void PersonalOptionsHandler::GetLocalizedValues(
   localized_strings->SetString("changePicture",
       l10n_util::GetStringUTF16(IDS_OPTIONS_CHANGE_PICTURE));
   if (chromeos::UserManager::Get()->user_is_logged_in()) {
-    localized_strings->SetString("userEmail",
+    localized_strings->SetString("username",
         chromeos::UserManager::Get()->logged_in_user().email());
   }
 #endif