Disable Cloudbackup for RTL languages in M42, as it is not sufficiently well layed out.

ui/file_manager/file_manager/background/js/device_handler_unittest.js

Index: ui/file_manager/file_manager/background/js/device_handler_unittest.js
diff --git a/ui/file_manager/file_manager/background/js/device_handler_unittest.js b/ui/file_manager/file_manager/background/js/device_handler_unittest.js
index 8c3510898682b03410999764fafe060773710876..a106bcbcd1ca8d279ab2e10606c0f09d92321bda 100644
--- a/ui/file_manager/file_manager/background/js/device_handler_unittest.js
+++ b/ui/file_manager/file_manager/background/js/device_handler_unittest.js
@@ -584,6 +584,11 @@ function setupChromeApis() {
         }
       }
     },
+    i18n: {
+      getUILanguage: function() {
+        return 'en-US'
+      }
+    },
     notifications: {
       resolver: new importer.Resolver(),
       create: function(id, params, callback) {