Remove ListValue::Append(new {Fundamental,String}Value(...)) pattern in //extensions

extensions/browser/api/management/management_api.cc

Index: extensions/browser/api/management/management_api.cc
diff --git a/extensions/browser/api/management/management_api.cc b/extensions/browser/api/management/management_api.cc
index fc043c0a0cc88bc1a51e920661d85ad203a9a8c2..d2326b5e5e4b2ae173b03e78e74aeb7f10b16219 100644
--- a/extensions/browser/api/management/management_api.cc
+++ b/extensions/browser/api/management/management_api.cc
@@ -865,7 +865,7 @@ void ManagementEventRouter::BroadcastEvent(
     return;  // Don't dispatch events for built-in extenions.
   std::unique_ptr<base::ListValue> args(new base::ListValue());
   if (event_name == management::OnUninstalled::kEventName) {
-    args->Append(new base::StringValue(extension->id()));
+    args->AppendString(extension->id());
   } else {
     args->Append(CreateExtensionInfo(*extension, browser_context_).ToValue());
   }