Support new-style Mojo JS core API on IOS.

ios/web/webui/resources/console.js

-// Copyright 2016 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.
-
-// Module "console"
-//
-// This module provides basic logging support. The reason to define this module
-// to forward calls to the |console| object exposed by the browser, instead of
-// using that object directly: mojo JS bindings are currently loaded using gin
-// and the |console| object is not always available.
-//
-// TODO(crbug.com/703380): When the Mojo JS bindings move away from gin,
-// this module could be removed.
-
-define("console", [], function() {
-  /**
-   * Logs a message to the console.
-   * @param {string} message to log.
-   */
-  function log(message) {
-    console.log(message);
-  }
-
-  var exports = {};
-  exports.log = log;
-  return exports;
-});