Service Worker: Add Clients.get(id)

third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h

Index: third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
diff --git a/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h b/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
index c661c30d4d106f862c4c5d1e0e0f41f55f83ae82..f28e3c960d1ba5eeb8ced71c3357f7df3ce2bb65 100644
--- a/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
+++ b/third_party/WebKit/public/web/modules/serviceworker/WebServiceWorkerContextClient.h
@@ -153,6 +153,12 @@ public:
 
     // Ownership of the passed callbacks is transferred to the callee, callee
     // should delete the callbacks after calling either onSuccess or onError.
+    // WebServiceWorkerClientInfo and WebServiceWorkerError ownerships are
+    // passed to the WebServiceWorkerClientCallbacks implementation.
+    virtual void getClient(const WebString&, WebServiceWorkerClientCallbacks* callbacks) { BLINK_ASSERT_NOT_REACHED(); }
+
+    // Ownership of the passed callbacks is transferred to the callee, callee
+    // should delete the callbacks after calling either onSuccess or onError.
     // WebServiceWorkerClientsInfo and WebServiceWorkerError ownerships are
     // passed to the WebServiceWorkerClientsCallbacks implementation.
     virtual void getClients(const WebServiceWorkerClientQueryOptions&, WebServiceWorkerClientsCallbacks* callbacks) { BLINK_ASSERT_NOT_REACHED(); }