Adding mojo calls for easy unlock service

chrome/browser/chromeos/login/screens/user_selection_screen.h

Index: chrome/browser/chromeos/login/screens/user_selection_screen.h
diff --git a/chrome/browser/chromeos/login/screens/user_selection_screen.h b/chrome/browser/chromeos/login/screens/user_selection_screen.h
index 2ec76b28aff005429dc17488bb44d3ad762925e7..f9cc031c5c9e6bed40fd2ee470c25a40a51eba74 100644
--- a/chrome/browser/chromeos/login/screens/user_selection_screen.h
+++ b/chrome/browser/chromeos/login/screens/user_selection_screen.h
@@ -115,6 +115,8 @@ class UserSelectionScreen
   // Determines if user auth status requires online sign in.
   static bool ShouldForceOnlineSignIn(const user_manager::User* user);
 
+  std::unique_ptr<base::ListValue> PrepareUserList();
+
  protected:
   UserBoardView* view_ = nullptr;
 
@@ -154,6 +156,8 @@ class UserSelectionScreen
   // Helper to check whether a user needs dircrypto migration.
   std::unique_ptr<DircryptoMigrationChecker> dircrypto_migration_checker_;
 
+  user_manager::UserList users_to_send_;
+
   base::WeakPtrFactory<UserSelectionScreen> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UserSelectionScreen);