Merge branch 'sh-bump-chrome-v73-images' into 'master'

Upgrade CI images to use Chrome V73

See merge request gitlab-org/gitlab-ce!27762

.gitlab-ci.yml

-image: "dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.5.3-golang-1.11-git-2.21-chrome-71.0-node-10.x-yarn-1.12-postgresql-9.6-graphicsmagick-1.3.29"
+image: "dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.5.3-golang-1.11-git-2.21-chrome-73.0-node-10.x-yarn-1.12-postgresql-9.6-graphicsmagick-1.3.29"
 
 variables:
   MYSQL_ALLOW_EMPTY_PASSWORD: "1"

.gitlab/ci/frontend.gitlab-ci.yml

@@ -16,7 +16,7 @@
 gitlab:assets:compile:
   <<: *assets-compile-cache
   extends: .dedicated-no-docs-pull-cache-job
-  image: dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.5.3-git-2.21-chrome-71.0-node-8.x-yarn-1.12-graphicsmagick-1.3.29-docker-18.06.1
+  image: dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.5.3-git-2.21-chrome-73.0-node-8.x-yarn-1.12-graphicsmagick-1.3.29-docker-18.06.1
   dependencies:
     - setup-test-env
   services:

.gitlab/ci/rails.gitlab-ci.yml

@@ -86,7 +86,7 @@
 .rspec-metadata-pg-10: &rspec-metadata-pg-10
   <<: *rspec-metadata
   <<: *use-pg-10
-  image: "dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.5.3-golang-1.11-git-2.21-chrome-71.0-node-10.x-yarn-1.12-postgresql-10-graphicsmagick-1.3.29"
+  image: "dev.gitlab.org:5005/gitlab/gitlab-build-images:ruby-2.5.3-golang-1.11-git-2.21-chrome-73.0-node-10.x-yarn-1.12-postgresql-10-graphicsmagick-1.3.29"
 
 .rspec-metadata-mysql: &rspec-metadata-mysql
   <<: *rspec-metadata

app/assets/javascripts/diffs/workers/tree_worker.js

@@ -4,6 +4,11 @@ import { generateTreeList } from '../store/utils';
 // eslint-disable-next-line no-restricted-globals
 self.addEventListener('message', e => {
   const { data } = e;
+
+  if (data === undefined) {
+    return;
+  }
+
   const { treeEntries, tree } = generateTreeList(data);
 
   // eslint-disable-next-line no-restricted-globals

app/assets/stylesheets/pages/search.scss

@@ -75,6 +75,8 @@ input[type='checkbox']:hover {
   }
 
   .search-input-wrap {
+    width: 100%;
+
     .search-icon,
     .clear-icon {
       position: absolute;