Remove RequestContext from Request.idl

third_party/WebKit/Source/modules/fetch/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://fetch.spec.whatwg.org/#request-class
 
 typedef (Request or USVString) RequestInfo;
 
-enum RequestContext {
-    "", "audio", "beacon", "cspreport", "download", "embed", "eventsource", "favicon",
-    "fetch", "font", "form", "frame", "hyperlink", "iframe", "image", "imageset", "import",
-    "internal", "location", "manifest", "metarefresh", "object", "ping", "plugin",
-    "prefetch", "script", "serviceworker", "sharedworker",
-    "subresource", "style", "track", "video", "worker", "xmlhttprequest", "xslt"
-};
 enum RequestMode { "navigate", "same-origin", "no-cors", "cors" };
 enum RequestCredentials { "omit", "same-origin", "include" };
 enum RequestRedirect { "follow", "error", "manual" };
 
 // https://w3c.github.io/webappsec-referrer-policy/#referrer-policies
 
 enum ReferrerPolicy {
     "",
     "no-referrer",
     "no-referrer-when-downgrade",
@@ skipping 17 matching lines @@
     [ImplementedAs=getReferrerPolicy] readonly attribute ReferrerPolicy referrerPolicy;
     readonly attribute RequestMode mode;
     readonly attribute RequestCredentials credentials;
     readonly attribute RequestRedirect redirect;
     readonly attribute DOMString integrity;
 
     [RaisesException, CallWith=ScriptState] Request clone();
 };
 
 Request implements Body;