Refactor extension event distribution to use Values instead of JSON strings.

chrome/browser/extensions/api/api_resource_event_notifier.cc

Index: chrome/browser/extensions/api/api_resource_event_notifier.cc
diff --git a/chrome/browser/extensions/api/api_resource_event_notifier.cc b/chrome/browser/extensions/api/api_resource_event_notifier.cc
index c89aa0055e849a12f9b4ece0b613bd0e7184c20d..c72b865b99b170bc6030244ae42ef01e51607e9b 100644
--- a/chrome/browser/extensions/api/api_resource_event_notifier.cc
+++ b/chrome/browser/extensions/api/api_resource_event_notifier.cc
@@ -134,9 +134,9 @@ void APIResourceEventNotifier::DispatchEventOnUIThread(
     const std::string &extension, DictionaryValue* event) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
-  ListValue args;
-  args.Set(0, event);
-  router_->DispatchEventToExtension(src_extension_id_, extension, args,
+  ListValue* const arguments = new ListValue();
+  arguments->Set(0, event);
+  router_->DispatchEventToExtension(src_extension_id_, extension, arguments,
                                     profile_, src_url_);
 }