chore: add karma chrome launcher (#9778)

Author: devversion

package.json

@@ -62,6 +62,7 @@
     "jshint": "^2.9.2",
     "jshint-summary": "^0.4.0",
     "karma": "^1.0.0",
+    "karma-chrome-launcher": "^2.0.0",
     "karma-firefox-launcher": "^1.0.0",
     "karma-jasmine": "^1.0.2",
     "karma-sauce-launcher": "^1.0.0",
@@ -83,4 +84,4 @@
     "merge-base": "git merge-base $(npm run -s current-branch) origin/master",
     "squash": "git rebase -i $(npm run -s merge-base)"
   }
-}
+}