Use Chromedriver version 2.26

Author: devversion

tools/gulp/tasks/e2e.ts

@@ -35,7 +35,9 @@ task(':build:e2eapp:assets', copyTask(appDir, outDir));
 task('build:e2eapp', buildAppTask('e2eapp'));
 
 /** Ensures that protractor and webdriver are set up to run. */
-task(':test:protractor:setup', execNodeTask('protractor', 'webdriver-manager', ['update']));
+task(':test:protractor:setup', execNodeTask(
+  'protractor', 'webdriver-manager', ['update', '--versions.chrome', '2.26'])
+);
 
 /** Runs protractor tests (assumes that server is already running. */
 task(':test:protractor', execNodeTask('protractor', [PROTRACTOR_CONFIG_PATH]));