Ship "Response construction with ReadableStream".

third_party/WebKit/Source/core/streams/ReadableStreamTempStub.js

-// Copyright 2015 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.
-
-(function(global, binding, v8) {
-  'use strict';
-
-  // This file exists to help in the transition between IDL-implemented ReadableStream and V8 extras-implemented
-  // ReadableStream. Before it was introduced, there was an IDL-implemented property of the global object named
-  // "ReadableStream" that had no useful behavior, but might have been depended on by web code for some reason.
-
-  // This file thus emulates that old IDL-implemented property, _when experimental web platform features are disabled_.
-  // When experimental web platform features are _enabled_, the definition of global.ReadableStream in
-  // ReadableStream.js takes priority.
-
-  // Eventually, when the ReadableStream.js implementation is ready to be enabled by default, we can remove this file.
-
-  const TypeError = global.TypeError;
-  const defineProperty = global.Object.defineProperty;
-
-  class ReadableStream {
-    constructor() {
-      throw new TypeError('Illegal constructor');
-    }
-
-    getReader() {
-      throw new TypeError('Illegal invocation');
-    }
-
-    cancel() {
-      throw new TypeError('Illegal invocation');
-    }
-  }
-
-  defineProperty(global, 'ReadableStream', {
-    value: ReadableStream,
-    enumerable: false,
-    configurable: true,
-    writable: true
-  });
-});