[Chromoting] Log extension name and version number on startup.

remoting/webapp/remoting.js

 // Copyright (c) 2012 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';
 
 /** @suppress {duplicate} */
 var remoting = remoting || {};
 
 /** @type {remoting.HostSession} */ remoting.hostSession = null;
@@ skipping 11 matching lines @@
   BAD_PLUGIN_VERSION: /*i18n-content*/'ERROR_BAD_PLUGIN_VERSION',
   GENERIC: /*i18n-content*/'ERROR_GENERIC',
   UNEXPECTED: /*i18n-content*/'ERROR_UNEXPECTED',
   SERVICE_UNAVAILABLE: /*i18n-content*/'ERROR_SERVICE_UNAVAILABLE'
 };
 
 /**
  * Entry point for app initialization.
  */
 remoting.init = function() {
+  remoting.logExtensionInfoAsync_();
   l10n.localize();
   var button = document.getElementById('toggle-scaling');
   button.title = chrome.i18n.getMessage(/*i18n-content*/'TOOLTIP_SCALING');
   // Create global objects.
   remoting.oauth2 = new remoting.OAuth2();
   remoting.stats = new remoting.ConnectionStats(
       document.getElementById('statistics'));
   remoting.formatIq = new remoting.FormatIq();
   remoting.hostList = new remoting.HostList(
       document.getElementById('host-list'),
@@ skipping 27 matching lines @@
   if (isHostModeSupported_()) {
     var noShare = document.getElementById('chrome-os-no-share');
     noShare.parentNode.removeChild(noShare);
   } else {
     var button = document.getElementById('share-button');
     button.disabled = true;
   }
 };
 
 /**
+ * Log information about the current extension.
+ * The extension manifest is loaded and parsed to extract this info.
+ */
+remoting.logExtensionInfoAsync_ = function() {
+  /** @type {XMLHttpRequest} */
+  var xhr = new XMLHttpRequest();
+  xhr.open('GET', 'manifest.json');
+  xhr.onload = function(e) {
+    var manifest =
+        /** @type {{name: string, version: string, default_locale: string}} */
+        JSON.parse(xhr.responseText);
+    console.log(manifest.name + ' version: ' + manifest.version);
+  }
+  xhr.send(null);
+};
+
+/**
  * If the client is connected, or the host is shared, prompt before closing.
  *
  * @return {?string} The prompt string if a connection is active.
  */
 remoting.promptClose = function() {
   switch (remoting.currentMode) {
     case remoting.AppMode.CLIENT_CONNECTING:
     case remoting.AppMode.HOST_WAITING_FOR_CODE:
     case remoting.AppMode.HOST_WAITING_FOR_CONNECTION:
     case remoting.AppMode.HOST_SHARED:
@@ skipping 78 matching lines @@
 
 /**
  * Returns whether Host mode is supported on this platform.
  *
  * @return {boolean} True if Host mode is supported.
  */
 function isHostModeSupported_() {
   // Currently, sharing on Chromebooks is not supported.
   return !navigator.userAgent.match(/\bCrOS\b/);
 }