ServiceWorker: Stop don't send a message before connection established

content/renderer/service_worker/embedded_worker_instance_client_impl.h

Index: content/renderer/service_worker/embedded_worker_instance_client_impl.h
diff --git a/content/renderer/service_worker/embedded_worker_instance_client_impl.h b/content/renderer/service_worker/embedded_worker_instance_client_impl.h
index 1b3d27d99457acdfe6444299d42c946c811eb963..35d325978442646ae46f5a4c89840aeffb8e8b91 100644
--- a/content/renderer/service_worker/embedded_worker_instance_client_impl.h
+++ b/content/renderer/service_worker/embedded_worker_instance_client_impl.h
@@ -5,6 +5,8 @@
 #ifndef CONTENT_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_INSTANCE_CLIENT_IMPL_H_
 #define CONTENT_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_INSTANCE_CLIENT_IMPL_H_
 
+#include <vector>
+
 #include "base/id_map.h"
 #include "base/optional.h"
 #include "content/child/child_thread_impl.h"
@@ -56,7 +58,7 @@ class EmbeddedWorkerInstanceClientImpl
   // not running.
   EmbeddedWorkerDispatcher::WorkerWrapper* wrapper_;
 
-  StopWorkerCallback stop_callback_;
+  std::vector<StopWorkerCallback> stop_callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(EmbeddedWorkerInstanceClientImpl);
 };