guardian/frontend — pull request #4488 by stephanfowler (2014-05-29 18:53:57+00:00)
Title: Responsive viewer: Chrome settings

Show a link to reveal instructions, in Chrome only:

![fronts-tool](https://cloud.githubusercontent.com/assets/1147913/3122032/63bbfd36-e762-11e3-9539-40a555a9a124.png)
wrong in Chrome