[ServiceWorker] Add EmbeddedWorkerInstanceHost Interface.

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 228efc650a848d353f72af9a3ed9510202a67fec..86adb803e6869c150a86ce15e25bc29bcd97dd44 100644
--- a/content/renderer/service_worker/embedded_worker_instance_client_impl.h
+++ b/content/renderer/service_worker/embedded_worker_instance_client_impl.h
@@ -40,8 +40,10 @@ class EmbeddedWorkerInstanceClientImpl
   // mojom::EmbeddedWorkerInstanceClient implementation
   void StartWorker(
       const EmbeddedWorkerStartParams& params,
-      mojom::ServiceWorkerEventDispatcherRequest dispatcher_request) override;
-  void StopWorker(const StopWorkerCallback& callback) override;
+      mojom::ServiceWorkerEventDispatcherRequest dispatcher_request,
+      mojom::EmbeddedWorkerInstanceHostAssociatedPtrInfo instance_host)
+      override;
+  void StopWorker() override;
   void ResumeAfterDownload() override;
   void AddMessageToConsole(blink::WebConsoleMessage::Level level,
                            const std::string& message) override;
@@ -62,8 +64,6 @@ class EmbeddedWorkerInstanceClientImpl
   // not running.
   EmbeddedWorkerDispatcher::WorkerWrapper* wrapper_;
 
-  StopWorkerCallback stop_callback_;
-
   DISALLOW_COPY_AND_ASSIGN(EmbeddedWorkerInstanceClientImpl);
 };