resourceloader: Document that WikiModule::getDB() may return IDatabase

Change-Id: I97d604c5fab38f379adcc76412bd5ee23294b300

diff --git a/includes/resourceloader/ResourceLoaderWikiModule.php b/includes/resourceloader/ResourceLoaderWikiModule.php
index 2a1736d..e195cf2 100644 (file)
--- a/includes/resourceloader/ResourceLoaderWikiModule.php
+++ b/includes/resourceloader/ResourceLoaderWikiModule.php
@@ -70,7 +70,7 @@ abstract class ResourceLoaderWikiModule extends ResourceLoaderModule {
         * In particular, it doesn't work for getting the content of JS and CSS pages. That functionality
         * will use the local DB irrespective of the return value of this method.
         *
-        * @return DatabaseBase|null
+        * @return IDatabase|null
         */
        protected function getDB() {
                return wfGetDB( DB_SLAVE );