Introducing FetchEventInit Dictionary.

Source/modules/serviceworkers/FetchEventInit.idl

Index: Source/modules/serviceworkers/FetchEventInit.idl
diff --git a/Source/modules/serviceworkers/RegistrationOptions.idl b/Source/modules/serviceworkers/FetchEventInit.idl
similarity index 64%
copy from Source/modules/serviceworkers/RegistrationOptions.idl
copy to Source/modules/serviceworkers/FetchEventInit.idl
index 17f2d20284edbaaf27eba94177b4ec87f37e53a9..96d0bae0ca7aebcb3404200b43dc4d39afa1a9e6 100644
--- a/Source/modules/serviceworkers/RegistrationOptions.idl
+++ b/Source/modules/serviceworkers/FetchEventInit.idl
@@ -2,7 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#registration-option-list-dictionary
-dictionary RegistrationOptions {
-    USVString scope;
+// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#fetch-event-interface
+
+dictionary FetchEventInit : EventInit {
+  Request request;
+  boolean isReload = false;    
 };