Enterprise Browser on Android uses the Android WebView control (technically different then the actual Chrome browser, but comparable). A good resource for actual behavior of this control is probably better documented on Android's site:
It is recommended to use standard HTML meta tags as opposed to EB settings in this case because it is standard Webview/Webkit and not our own version of webkit.
For example, the following
<meta>tag specifies that the viewport width should exactly match the device screen's width:
<meta name="viewport" content="width=device-width,
Other 'responsive' modern web app design also leverage CSS and media-queries to handle this more efficiently and with greater control (many articles on this subject - but here is one). Most modern UI frameworks have many of these complexities built into the framework, but in the case of an app that is not using a 3rd party framework, then they should get familiar with the CSS based concepts.
Hope this helps