[UserScript cleanup] Remove use of ScopedVector from UserScriptSet.

extensions/renderer/dispatcher.cc

Index: extensions/renderer/dispatcher.cc
diff --git a/extensions/renderer/dispatcher.cc b/extensions/renderer/dispatcher.cc
index a5b57b1995a7382d14a4bcfd14b778811342aad4..e83c89798c7460721e0065dffaa92c8ec40ac9a2 100644
--- a/extensions/renderer/dispatcher.cc
+++ b/extensions/renderer/dispatcher.cc
@@ -1284,8 +1284,7 @@ void Dispatcher::OnSetActivityLoggingEnabled(bool enabled) {
   user_script_set_manager_->set_activity_logging_enabled(enabled);
 }
 
-void Dispatcher::OnUserScriptsUpdated(const std::set<HostID>& changed_hosts,
-                                      const std::vector<UserScript*>& scripts) {
+void Dispatcher::OnUserScriptsUpdated(const std::set<HostID>& changed_hosts) {
   UpdateActiveExtensions();
 }