ServiceWorker: support Request.{url,method,origin,headers} [blink] (1/3)

Source/modules/serviceworkers/Request.idl

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // 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#response-objects
-// FIXME: Split this idl/impl into AbstractResponse and Response.
+// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#request-objects
+
 [
-    Constructor(optional Dictionary responseInitDict),
+    Constructor(optional Dictionary requestInitDict),
     RuntimeEnabled=ServiceWorker,
     Exposed=ServiceWorker
-] interface Response {
-    readonly attribute unsigned short status;
-
+] interface Request {
+    attribute DOMString url;
     // FIXME: Spec uses ByteString for this. We must perform the DOMString -> ByteString conversion manually (crbug.com/347426).
-    readonly attribute DOMString statusText;
-
+    attribute DOMString method;
+    readonly attribute DOMString origin;
     readonly attribute HeaderMap headers;
 
     // FIXME: Implement the following:
-    // attribute DOMString url;
-    // Promise<Blob> toBlob();
+    // attribute unsigned long timeout;
+    // readonly attribute Mode mode;
+    // attribute boolean synchronous;
+    // readonly attribute unsigned long redirectCount;
+    // attribute boolean forcePreflight;
+    // attribute boolean forceSameOrigin;
+    // attribute boolean omitCredentials;
+    // readonly attribute DOMString referrer;
+    // attribute any body;
 };