Move brush_event to vis_filters since it is only used there.

src/legacy/ui/public/utils/__tests__/brush_event.test.js → src/legacy/ui/public/vis/vis_filters/brush_event.test.js

@@ -39,7 +39,7 @@ jest.mock('ui/chrome',
 import _ from 'lodash';
 import moment from 'moment';
 import expect from '@kbn/expect';
-import { onBrushEvent } from '../brush_event';
+import { onBrushEvent } from './brush_event';
 import { timefilter } from 'ui/timefilter';
 
 describe('brushEvent', () => {

src/legacy/ui/public/vis/vis_filters/index.js

@@ -0,0 +1,20 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+export { VisFiltersProvider, createFilter } from './vis_filters';

src/legacy/ui/public/vis/vis_filters.js → src/legacy/ui/public/vis/vis_filters/vis_filters.js

@@ -18,9 +18,9 @@
  */
 
 import _ from 'lodash';
-import { FilterBarPushFiltersProvider } from '../filter_bar/push_filters';
-import { FilterBarQueryFilterProvider } from '../filter_bar/query_filter';
-import { onBrushEvent } from '../utils/brush_event';
+import { FilterBarPushFiltersProvider } from '../../filter_bar/push_filters';
+import { FilterBarQueryFilterProvider } from '../../filter_bar/query_filter';
+import { onBrushEvent } from './brush_event';
 
 /**
  * For terms aggregations on `__other__` buckets, this assembles a list of applicable filter