Handle authentication failures in the v2 app by restarting the app

remoting/webapp/crd/js/remoting.js

Index: remoting/webapp/crd/js/remoting.js
diff --git a/remoting/webapp/crd/js/remoting.js b/remoting/webapp/crd/js/remoting.js
index ba07e04ff2227519feb8d51c3e4d89821584a500..ad0d9004b97602523945230c1ebfdf98a06f0764 100644
--- a/remoting/webapp/crd/js/remoting.js
+++ b/remoting/webapp/crd/js/remoting.js
@@ -118,7 +118,9 @@ remoting.signOut = function() {
   remoting.oauth2.clear();
   chrome.storage.local.clear();
   remoting.setMode(remoting.AppMode.HOME);
-  document.getElementById('auth-dialog').hidden = false;
+  remoting.AuthDialog.show().then(function() {
+    remoting.identity.handleAuthFailureAndRelaunch();
+  });
 };
 
 /**
@@ -199,9 +201,13 @@ remoting.showErrorMessage = function(error) {
       document.getElementById('token-refresh-error-message'),
       error);
   var auth_failed = (error == remoting.Error.AUTHENTICATION_FAILED);
-  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);
+  if (base.isAppsV2()) {
+    remoting.identity.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);
+  }
 };
 
 /**