Watching YouTube inside Emacs 25, with a complete Webkit-based web browser

The upcoming Emacs 25 include a real web browse based on Webkit, thanks to the addition of xwidget. You can now have a real web browser inside Emacs, and it renders fast, too! Here are some demos:

- Browsing Youtube in Emacs: http://i.imgur.com/T5efpL0.gifv

- Watching Youtube in Emacs: http://i.imgur.com/KsLQxNC.gifv

- Open Github in Emacs: http://i.imgur.com/QhVYPkp.png

- Open Google in Emac: http://i.imgur.com/fIItEpu.png

- Open both: http://i.imgur.com/ku1dFuS.png

Aside from watching youtube, these are some of prime use cases:

- Combine with helm-dash to open HTML document for symbol at point: http://i.imgur.com/IcIo6af.gif

- Combine with helm-google-suggestet: http://i.imgur.com/2rTQeiG.gifv

Just to show how useful this feature is, consider this demo of using `helm-dash` with EWW, previous web browser in Emacs 24: http://i.imgur.com/G7pzDZN.gifv

But, that does not mean Eww is useless. It's still useful for web browsing within a terminal.