Improve HRD first run experience

remoting/webapp/base/js/base.js

 // Copyright 2014 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
  * A module that contains basic utility components and methods for the
  * chromoting project
  *
  */
@@ skipping 161 matching lines @@
     return url;
   }
   var queryParameters = [];
   for (var key in opt_params) {
     queryParameters.push(encodeURIComponent(key) + "=" +
                          encodeURIComponent(opt_params[key]));
   }
   return url + '?' + queryParameters.join('&');
 };
 
+
+/**
+ * @return {Object.<string, string>} The URL parameters.
+ */
+base.getUrlParameters = function() {
+  var result = {};
+  var parts = window.location.search.substring(1).split('&');
+  for (var i = 0; i < parts.length; i++) {
+    var pair = parts[i].split('=');
+    result[pair[0]] = decodeURIComponent(pair[1]);
+  }
+  return result;
+};
+
 /**
  * Convert special characters (e.g. &, < and >) to HTML entities.
  *
  * @param {string} str
  * @return {string}
  */
 base.escapeHTML = function(str) {
   var div = document.createElement('div');
   div.appendChild(document.createTextNode(str));
   return div.innerHTML;
@@ skipping 383 matching lines @@
  * @return {Object|undefined} The decoded object, or undefined if the string
  *     cannot be parsed.
  */
 base.jsonParseSafe = function(jsonString) {
   try {
     return /** @type {Object} */ (JSON.parse(jsonString));
   } catch (err) {
     return undefined;
   }
 };
+
+/**
+ * Size the current window to fit its content vertically.
+ */
+base.resizeWindowToContent = function() {
+  var appWindow = chrome.app.window.current();
+  var outerBounds = appWindow.outerBounds;
+  var borderY = outerBounds.height - appWindow.innerBounds.height;
+  appWindow.resizeTo(outerBounds.width, document.body.clientHeight + borderY);
+  // Sometimes, resizing the window causes its position to be reset to (0, 0),
+  // so restore it explicitly.
+  appWindow.moveTo(outerBounds.left, outerBounds.top);
+};