Roll engine af04338413c3..2f69e38160a3 (2 commits) (#44493)

git@github.com:flutter/engine.git/compare/af04338413c3...2f69e38160a3

git log af04338413c3..2f69e38160a3 --no-merges --oneline
2019-11-08 hterkelsen@users.noreply.github.com Implement Path.computeMetrics in the CanvasKit backend (flutter/engine#13760)
2019-11-08 jason-simmons@users.noreply.github.com libtxt: pass an RTL bool flag instead of a bidiFlags enum to measureText (flutter/engine#13736)


If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC garyq@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

bin/internal/engine.version

-af04338413c3ed73316350f64248a152433073b6
+2f69e38160a301f4070a8be25dcb66120e4548ac