After "some" testing and research I set up my buildbox and build a real VAAPI HW accelerated and enabled chromium Version
You can easily check the used decoder with chrome://media-internals
browser.chromium.63.0.3239.108 <- for LibreELEC 8 x86_64 and of LE9 nightly x86_64
Works fine on my Celeron Braswell NUC. h264 and VP8 GPU decoding is working. H264 up to 1080p60 smooth.
Just one problem ... on "Twitch" eg. the video freezes if an advertising starts ... I've no clue why. Doesn't seem related to the VAAPI-HW decoder patch. Same with software decode.
EDIT: With h264ify and adblock addon it works like a charm. Smooth (unencrypted) playback up to 1080p60 on NUC5CPYH! I don't know why these patches are not already in LibreELEC source addon chromium. Maybe it breaks something on other systems than Intel.
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HELLO Your Version runs just very Fine on my ASROCK J3455 (Intel) Board (Apollo Lake).
Now there is no more tearing (look like vertikal synchron ist not aktivated).
All my videos from Youtube just run fine in 1080p 50hz/60hz . and just smooth in fullscreen (Intel HW acceleration ist activated ).
i didnt test 4K contents because i have only full HD TV.
thx for your work !
so also i find a plugin where i can use KIOSK Mode and close the Browser.
In Kiosk mode there is no EXIT button and you cant close the ChromeBrowser by using a Wireless Airmouse like me (ebay 10€).
So i found this plugin for mouse Geastures.
crxMouse Chrome™ Gestures - Chrome Web Store
there you can add mousegestures to close the Browser in Kiosk mode.
I like Kiosk mode for Youtube.
greatz majo