ServiceWorker: Add support for .skipWaiting and controllerchange event(2/3)

content/renderer/service_worker/embedded_worker_context_client.cc

Index: content/renderer/service_worker/embedded_worker_context_client.cc
diff --git a/content/renderer/service_worker/embedded_worker_context_client.cc b/content/renderer/service_worker/embedded_worker_context_client.cc
index 5b54f3fae845589c38b247ead283729b98026f89..1301bb2b8075ff7104a9066ec4c395e11b5a1a15 100644
--- a/content/renderer/service_worker/embedded_worker_context_client.cc
+++ b/content/renderer/service_worker/embedded_worker_context_client.cc
@@ -374,6 +374,12 @@ void EmbeddedWorkerContextClient::focus(
   script_context_->FocusClient(client_id, callback);
 }
 
+void EmbeddedWorkerContextClient::skipWaiting(
+    blink::WebServiceWorkerSkipWaitingCallbacks* callbacks) {
+  DCHECK(script_context_);
+  script_context_->SkipWaiting(callbacks);
+}
+
 void EmbeddedWorkerContextClient::OnMessageToWorker(
     int thread_id,
     int embedded_worker_id,