[Chromoting] Move shared webapp JS files from crd/js -> base/js

remoting/webapp/crd/js/credentials_provider.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.
-
-'use strict';
-
-var remoting = remoting || {};
-
-/** @typedef {{clientId: string, sharedSecret: string}} */
-remoting.PairingInfo;
-
-/** @typedef {{token: string, secret: string}} */
-remoting.ThirdPartyToken;
-
-/**
- * Parameters for the remoting.CredentialsProvider constructor.
- *
- * fetchPin: Called by Me2Me connections when a PIN needs to be obtained
- *     interactively.
- *
- * pairingInfo: The pairing info for Me2Me Connections.
- *
- * accessCode: It2Me access code. If present, the |fetchPin| callback will be
- *     ignored.
- *
- * fetchThirdPartyToken: Called when a third party authentication token
- *     is needed
- *
- * @typedef {{
- *   accessCode: (string|undefined),
- *   fetchPin: (function(boolean,function(string): void)|undefined),
- *   pairingInfo: (remoting.PairingInfo|undefined),
- *   fetchThirdPartyToken:
- *      (function(string ,string , string,
- *                function(string, string):void) | undefined)
- * }}
- */
-remoting.CredentialsProviderParams;
-
-/**
- * @param {remoting.CredentialsProviderParams} args
- * @constructor
- */
-remoting.CredentialsProvider = function(args) {
-  /** @private */
-  this.fetchPin_ = (args.accessCode) ? this.getAccessCode_ : args.fetchPin;
-  /** @private */
-  this.pairingInfo_ = args.pairingInfo;
-  /** @private */
-  this.accessCode_ = args.accessCode;
-  /** @private */
-  this.fetchThirdPartyToken_ = args.fetchThirdPartyToken;
-};
-
-/** @returns {void}  */
-remoting.CredentialsProvider.prototype.getAccessCode_ = function(
-  /** boolean */ supportsPairing, /** Function */ callback) {
-  callback(this.accessCode_);
-};
-
-/** @returns {remoting.PairingInfo}  */
-remoting.CredentialsProvider.prototype.getPairingInfo = function() {
-  return this.pairingInfo_ || { clientId: '', sharedSecret: ''};
-};
-
-/**
- * @param {boolean} pairingSupported Whether pairing is supported by the host.
- * @returns {Promise<string>}
- */
-remoting.CredentialsProvider.prototype.getPIN = function(pairingSupported) {
-  var that = this;
-  if (!this.fetchPin_) {
-    Promise.resolve('');
-  }
-  return new Promise(function(/** function(string) */ resolve) {
-    that.fetchPin_(pairingSupported, resolve);
-  });
-};
-
-/**
- * @param {string} tokenUrl Token-issue URL received from the host.
- * @param {string} hostPublicKey Host public key (DER and Base64 encoded).
- * @param {string} scope OAuth scope to request the token for.
- *
- * @returns {Promise<remoting.ThirdPartyToken>}
- */
-remoting.CredentialsProvider.prototype.getThirdPartyToken = function(
-    tokenUrl, hostPublicKey, scope) {
-  var that = this;
-  if (!this.fetchThirdPartyToken_) {
-    Promise.resolve({token: '', secret: ''});
-  }
-  return new Promise(function(/** Function */ resolve) {
-    var onTokenFetched = function(/** string */ token, /** string */ secret) {
-      resolve({token: token, secret: secret});
-    };
-    that.fetchThirdPartyToken_(tokenUrl, hostPublicKey, scope, onTokenFetched);
-  });
-};