[fix-build] add stable version chrome in travis conf (#2819)

* chrome stable

.travis.yml

@@ -4,6 +4,9 @@ sudo: false
 node_js:
   - "8"
 
+addons:
+  chrome: stable
+
 before_install:
   - "export DISPLAY=:99.0"
   - "sh -e /etc/init.d/xvfb start"

lib/config/karma.conf-all.js

@@ -76,6 +76,18 @@ module.exports = function (config) {
 
         browsers: ['Chrome'],
 
+        customLaunchers: {
+            ChromeHeadless: {
+                base: 'Chrome',
+                flags: [
+                    '--no-sandbox',
+                    '--headless',
+                    '--disable-gpu',
+                    '--remote-debugging-port=9222'
+              ]
+            }
+        },
+
         // Karma plugins loaded
         plugins: [
             require('../node_modules/karma-jasmine'),

lib/content-services/content-node-selector/content-node-selector.component.ts

@@ -30,7 +30,6 @@ import { ImageResolver } from '../document-list/data/image-resolver.model';
 })
 export class ContentNodeSelectorComponent {
 
-
     /**
      * @deprecated in 2.1.0
      */

lib/core/card-view/card-view-textitem.component.ts

@@ -54,8 +54,8 @@ export class CardViewTextItemComponent implements OnChanges {
     setEditMode(editStatus: boolean): void {
         this.inEdit = editStatus;
         setTimeout(() => {
-            if(this.editorInput) {
+            if (this.editorInput) {
-                this.editorInput.nativeElement.click();    
+                this.editorInput.nativeElement.click();
             }
         }, 0);
     }