Move Fetch API releted code to modules/fetch.

Source/modules/serviceworkers/Body.idl

Index: Source/modules/serviceworkers/Body.idl
diff --git a/Source/modules/serviceworkers/Body.idl b/Source/modules/serviceworkers/Body.idl
deleted file mode 100644
index 656cac57b7c2dc4312d956f45879372dde812f08..0000000000000000000000000000000000000000
--- a/Source/modules/serviceworkers/Body.idl
+++ /dev/null
@@ -1,24 +0,0 @@
-// 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.
-
-// http://fetch.spec.whatwg.org/#body
-typedef object JSON;
-[
-    RuntimeEnabled=ServiceWorker,
-    Exposed=ServiceWorker,
-    NoInterfaceObject,
-    ActiveDOMObject,
-    GarbageCollected,
-    TypeChecking=Interface,
-] interface Body {
-    readonly attribute boolean bodyUsed;
-    [CallWith=ScriptState] Promise<ArrayBuffer> arrayBuffer();
-    [CallWith=ScriptState] Promise<Blob> blob();
-    [CallWith=ScriptState] Promise<JSON> json();
-    [CallWith=ScriptState] Promise<USVString> text();
-
-    [RuntimeEnabled=Stream] readonly attribute ReadableStream body;
-    // Still to be implemented.
-    // [CallWith=ScriptState] Promise<FormData> formData();
-};