A WebView typically means a special object in mobile operating systems that is capable of rendering HTML pages.
In essence, a WebView is a web browser that is wrapped inside an application and controlled by the application. It is used for cross platform development, where developers wish to use the same code for multiple operating systems and environments.
The WebView in iOS and Android don’t support WebRTC.
Google announced that the upcoming Android L version will support WebRTC inside WebView.