[Chromoting] Move app-specific code out of remoting.js

remoting/webapp/crd/js/crd_main.js

Index: remoting/webapp/crd/js/crd_main.js
diff --git a/remoting/webapp/crd/js/crd_main.js b/remoting/webapp/crd/js/crd_main.js
index 2f7b03f755590e84ba44219f9b7611c21922189c..20ae60aa9f2594cd55429eaa0e9ba78ae202d95f 100644
--- a/remoting/webapp/crd/js/crd_main.js
+++ b/remoting/webapp/crd/js/crd_main.js
@@ -17,7 +17,8 @@ remoting.initHostlist_ = function() {
       document.getElementById('host-list-empty'),
       document.getElementById('host-list-error-message'),
       document.getElementById('host-list-refresh-failed-button'),
-      document.getElementById('host-list-loading-indicator'));
+      document.getElementById('host-list-loading-indicator'),
+      remoting.showErrorMessage);
 
   isHostModeSupported_().then(
       /** @param {Boolean} supported */
@@ -180,6 +181,23 @@ remoting.startDesktopRemotingForTesting = function() {
   }
 }
 
+/**
+ * @param {!remoting.Error} error The failure reason.
+ */
+remoting.showErrorMessage = function(error) {
+  l10n.localizeElementFromTag(
+      document.getElementById('token-refresh-error-message'),
+      error.getTag());
+  var auth_failed = (error.hasTag(remoting.Error.Tag.AUTHENTICATION_FAILED));
+  if (auth_failed && base.isAppsV2()) {
+    remoting.handleAuthFailureAndRelaunch();
+  } else {
+    document.getElementById('token-refresh-auth-failed').hidden = !auth_failed;
+    document.getElementById('token-refresh-other-error').hidden = auth_failed;
+    remoting.setMode(remoting.AppMode.TOKEN_REFRESH_FAILED);
+  }
+};
+
 
 remoting.startDesktopRemoting = function() {
   remoting.app = new remoting.Application(remoting.app_capabilities());