Moving timezone functions from Timelion to Vis (#13457)

* Moving timezone functions from Timeline to global

* Fixing a missing require

src/core_plugins/timelion/public/app.js

@@ -4,6 +4,7 @@ import moment from 'moment-timezone';
 import { DocTitleProvider } from 'ui/doc_title';
 import { SavedObjectRegistryProvider } from 'ui/saved_objects/saved_object_registry';
 import { notify } from 'ui/notify';
+import { timezoneProvider } from 'ui/vis/lib/timezone';
 
 require('plugins/timelion/directives/cells/cells');
 require('plugins/timelion/directives/fixed_element');
@@ -75,7 +76,7 @@ app.controller('timelion', function (
   });
 
   const savedVisualizations = Private(SavedObjectRegistryProvider).byLoaderPropertiesName.visualizations;
-  const timezone = Private(require('plugins/timelion/services/timezone'))();
+  const timezone = Private(timezoneProvider)();
   const docTitle = Private(DocTitleProvider);
 
   const defaultExpression = '.es(*)';

src/core_plugins/timelion/public/vis/timelion_request_handler.js

@@ -1,8 +1,9 @@
 import _ from 'lodash';
 import { dashboardContextProvider } from 'plugins/kibana/dashboard/dashboard_context';
 
+import { timezoneProvider } from 'ui/vis/lib/timezone';
 const TimelionRequestHandlerProvider = function (Private, Notifier, $http, $rootScope, timefilter) {
-  const timezone = Private(require('plugins/timelion/services/timezone'))();
+  const timezone = Private(timezoneProvider)();
   const dashboardContext = Private(dashboardContextProvider);
 
   const notify = new Notifier({

src/core_plugins/timelion/public/services/timezone.js → src/ui/public/vis/lib/timezone.js

@@ -1,7 +1,7 @@
 const tzDetect = require('jstimezonedetect').jstz;
 import moment from 'moment';
 
-export default function timezoneFn(config) {
+export function timezoneProvider(config) {
   return function () {
 
     if (config.isDefault('dateFormat:tz')) {
@@ -14,3 +14,4 @@ export default function timezoneFn(config) {
 
   };
 }
+