Quickly re-open that tab you accidentally closed while reading
Those of you on the beta track of Chrome on Android will be receiving an update today with a small, but useful, set of features. First up is the ability to "undo" an accidental tab closure — something that we're all used to being able to do on desktop browsers. Next is improvements to the video player, letting your phone or tablet make use of HTML5 full-screen video with subtitles and on-screen playback controls.
The update also includes support for the multi-window features on some devices (although which ones aren't specified), as well as support for sending some videos from the browser to Chromecast directly. The update is now available from the Play Store at the link above, so long as you're okay with moving over to the beta channel of the browser.
Source: Google Chrome Releases