Comment 68 for bug 1371274

Just some news to inform you that mesa drivers have been included in the official raspian dist since 09-02-2016:
https://www.raspberrypi.org/blog/another-new-raspbian-release/
Warning: You have to enable it through rasp-config(advanced settings->gl options) and then reboot.
I'have test it on chromium 47+libwine+user agent switcher +chrome://flag and chrome://plugins correctly setbut found rendering still choppy and cpu high(80-90) while in chrome://gpu everything except rasterization is on "Hardware accelerated".
I should test with the messa drivers to see if webgl is correctly working...