Converted remoting.Error from an enum to a class

remoting/webapp/crd/js/host_install_dialog.js

Index: remoting/webapp/crd/js/host_install_dialog.js
diff --git a/remoting/webapp/crd/js/host_install_dialog.js b/remoting/webapp/crd/js/host_install_dialog.js
index ab072e830eecafb866a892183a70526a8714be51..30166f803238fdd5ca3df3aa2aee2a824cfa108e 100644
--- a/remoting/webapp/crd/js/host_install_dialog.js
+++ b/remoting/webapp/crd/js/host_install_dialog.js
@@ -30,7 +30,7 @@ remoting.HostInstallDialog = function() {
   /** @private*/
   this.onDoneHandler_ = function() {};
 
-  /** @param {remoting.Error} error @private */
+  /** @param {!remoting.Error} error @private */
   this.onErrorHandler_ = function(error) {};
 
   /**
@@ -46,7 +46,7 @@ remoting.HostInstallDialog = function() {
  * @param {function():void} onDone Callback called when user clicks Ok,
  * presumably after installing the host. The handler must verify that the host
  * has been installed and call tryAgain() otherwise.
- * @param {function(remoting.Error):void} onError Callback called when user
+ * @param {function(!remoting.Error):void} onError Callback called when user
  *    clicks Cancel button or there is some other unexpected error.
  * @return {void}
  */
@@ -60,7 +60,7 @@ remoting.HostInstallDialog.prototype.show = function(onDone, onError) {
   /** @type {function():void} */
   this.onDoneHandler_ = onDone;
 
-  /** @type {function(remoting.Error):void} */
+  /** @type {function(!remoting.Error):void} */
   this.onErrorHandler_ = onError;
 
   /** @type {remoting.HostInstaller} */