Switch from Shadow DOM v0 to Shadow DOM v1
It looks that AdBlock is using Shadow DOM v0 APIs, createShadowRoot().
Since Google Chrome is going to deprecate old Shadow DOM v0 APIs, I really appreciate if AdBlock could switch to use new Shadow DOM v1 APIs, attachShadow(), instead of old V0 APIs.
For more context, please see the following thread in blink-dev:
"Intent to Deprecate: Shadow DOM v0": https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/txIN7qDRFpU/iFTNP8adAgAJ
Note that I have also filed a similar request for AdBlock Plus here: https://issues.adblockplus.org/ticket/4713#ticket