Hangout remote desktop part II - background.html and AppLauncher

remoting/webapp/base.js

Index: remoting/webapp/base.js
diff --git a/remoting/webapp/base.js b/remoting/webapp/base.js
index 4771e53714a1ca25bc858485f95159525aaf0d1b..d12db235d23a6b507bb86676a16051b1dfbd7019 100644
--- a/remoting/webapp/base.js
+++ b/remoting/webapp/base.js
@@ -112,6 +112,26 @@ base.values = function(dict) {
     });
 };
 
+
+/**
+ * Joins the |url| with optional query parameters defined in |opt_params|
+ * See unit test for usage.
+ * @param {string} url
+ * @param {Object.<string>=} opt_params
+ * @return {string}
+ */
+base.urlJoin = function(url, opt_params) {
+  if (!opt_params) {
+    return url;
+  }
+  var queryParameters = [];
+  for (var key in opt_params) {
+    queryParameters.push(encodeURIComponent(key) + "=" +
+                         encodeURIComponent(opt_params[key]));
+  }
+  return url + '?' + queryParameters.join('&');
+};
+
 base.Promise = function() {};
 
 /**