Main benefit being for shared cookies.
I'd imagine you don't have as much control as a webview though.
There could be some kind of an option or an Open with chrome custom tab option, maybe useful with a domain redirect to Chrome Custom Tab type of feature.
http://android-developers.blogspot.ca/2015/09/chrome-custom-tabs-smooth-transition.html
Main benefit being for shared cookies. I'd imagine you don't have as much control as a webview though. There could be some kind of an option or an Open with chrome custom tab option, maybe useful with a domain redirect to Chrome Custom Tab type of feature.