Don't serialize config dictionary in Native Messaging interface.

remoting/webapp/host_native_messaging.js

 // Copyright 2013 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.
 
 /**
  * @fileoverview
  * Class to communicate with the Host components via Native Messaging.
  */
 
 'use strict';
@@ skipping 234 matching lines @@
     case 'updateDaemonConfigResponse':
       var result = asAsyncResult_(message['result']);
       if (result != null) {
         callback(result);
       }
       break;
 
     case 'getDaemonConfigResponse':
       /** @type {*} */
       var config = message['config'];
-      if (checkType_('config', config, 'string')) {
+      if (checkType_('config', config, 'object')) {
         callback(config);
       }
       break;
 
     case 'getUsageStatsConsentResponse':
       /** @type {*} */
       var supported = message['supported'];
       /** @type {*} */
       var allowed = message['allowed'];
       /** @type {*} */
@@ skipping 99 matching lines @@
 };
 
 /**
  * Updates host config with the values specified in |config|. All
  * fields that are not specified in |config| remain
  * unchanged. Following parameters cannot be changed using this
  * function: host_id, xmpp_login. Error is returned if |config|
  * includes these parameters. Changes take effect before the callback
  * is called.
  *
- * @param {string} config The new config parameters, JSON encoded dictionary.
+ * @param {Object} config The new config parameters.
  * @param {function(remoting.HostController.AsyncResult):void} callback
  *     Callback to be called when finished.
  * @return {void} Nothing.
  */
 remoting.HostNativeMessaging.prototype.updateDaemonConfig =
     function(config, callback) {
   this.postMessage_({
       type: 'updateDaemonConfig',
       config: config
   }, callback);
 };
 
 /**
  * Loads daemon config. The config is passed as a JSON formatted string to the
  * callback.
  *
- * @param {function(string):void} callback Callback.
+ * @param {function(Object):void} callback Callback.
  * @return {void} Nothing.
  */
 remoting.HostNativeMessaging.prototype.getDaemonConfig = function(callback) {
   this.postMessage_({type: 'getDaemonConfig'}, callback);
 };
 
 /**
  * Retrieves daemon version. The version is passed to the callback as a dotted
  * decimal string of the form major.minor.build.patch.
  *
@@ skipping 15 matching lines @@
  * @return {void} Nothing.
  */
 remoting.HostNativeMessaging.prototype.getUsageStatsConsent =
     function(callback) {
   this.postMessage_({type: 'getUsageStatsConsent'}, callback);
 };
 
 /**
  * Starts the daemon process with the specified configuration.
  *
- * @param {string} config Host configuration.
+ * @param {Object} config Host configuration.
  * @param {boolean} consent Consent to report crash dumps.
  * @param {function(remoting.HostController.AsyncResult):void} callback
  *     Callback.
  * @return {void} Nothing.
  */
 remoting.HostNativeMessaging.prototype.startDaemon = function(
     config, consent, callback) {
   this.postMessage_({
       type: 'startDaemon',
       config: config,
@@ skipping 14 matching lines @@
 
 /**
  * Gets the installed/running state of the Host process.
  *
  * @param {function(remoting.HostController.State):void} callback Callback.
  * @return {void} Nothing.
  */
 remoting.HostNativeMessaging.prototype.getDaemonState = function(callback) {
   this.postMessage_({type: 'getDaemonState'}, callback);
 }