[ServiceWorker] Implement WebServiceWorkerContextClient::openWindow().

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 ccf3dcce48defaba3f0f1d775b14fde0721beb91..52fb83632b90adb3b61e514aef05e1b42a01cf87 100644
--- a/content/renderer/service_worker/embedded_worker_context_client.cc
+++ b/content/renderer/service_worker/embedded_worker_context_client.cc
@@ -153,6 +153,13 @@ void EmbeddedWorkerContextClient::getClients(
   script_context_->GetClientDocuments(callbacks);
 }
 
+void EmbeddedWorkerContextClient::openWindow(
+    const blink::WebURL& url,
+    blink::WebServiceWorkerClientCallbacks* callbacks) {
+  DCHECK(script_context_);
+  script_context_->OpenWindow(url, callbacks);
+}
+
 void EmbeddedWorkerContextClient::workerReadyForInspection() {
   Send(new EmbeddedWorkerHostMsg_WorkerReadyForInspection(embedded_worker_id_));
 }