Consistently handle persistent notification ids as int64_t

content/renderer/service_worker/service_worker_script_context.cc

Index: content/renderer/service_worker/service_worker_script_context.cc
diff --git a/content/renderer/service_worker/service_worker_script_context.cc b/content/renderer/service_worker/service_worker_script_context.cc
index 372052057edb716f5836a9de5efa5fc8541ef5e1..de32db8ddc38c986363fbf03a1d28e4c4e16b48f 100644
--- a/content/renderer/service_worker/service_worker_script_context.cc
+++ b/content/renderer/service_worker/service_worker_script_context.cc
@@ -365,14 +365,14 @@ void ServiceWorkerScriptContext::OnSyncEvent(int request_id) {
 
 void ServiceWorkerScriptContext::OnNotificationClickEvent(
     int request_id,
-    const std::string& notification_id,
+    int64_t persistent_notification_id,
     const PlatformNotificationData& notification_data) {
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerScriptContext::OnNotificationClickEvent");
   notification_click_start_timings_[request_id] = base::TimeTicks::Now();
   proxy_->dispatchNotificationClickEvent(
       request_id,
-      blink::WebString::fromUTF8(notification_id),
+      persistent_notification_id,
       ToWebNotificationData(notification_data));
 }