Add support for TextEncoderStream
Created attachment 407458 [details] Patch
Created attachment 407464 [details] Patch
All tests should pass once bug 215890 is fixed.
Tools/Scripts/svn-apply failed to apply attachment 407464 [details] to trunk. Please resolve the conflicts and upload a new patch.
Created attachment 407566 [details] Patch for landing
Committed r266332: <https://trac.webkit.org/changeset/266332> All reviewed patches have been landed. Closing bug and clearing flags on attachment 407566 [details].
<rdar://problem/68022222>