Roll src/third_party/devtools-frontend/src 12ec6fce73b0..4af8a9af995e (1 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/12ec6fce73b0..4af8a9af995e

git log 12ec6fce73b0..4af8a9af995e --date=short --first-parent --format='%ad %ae %s'
2020-03-07 devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com Update DevTools DEPS.

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@4af8a9af995e

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/devtools-frontend-chromium
Please CC devtools-waterfall-sheriff-onduty@grotations.appspotmail.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

Bug: None
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: Ibd43ed69659f1dd9b493c8181f80b506dfe884b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2092984Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#748016}

DEPS

@@ -246,7 +246,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling devtools-frontend
   # and whatever else without interference from each other.
-  'devtools_frontend_revision': '12ec6fce73b00ea29ed842bd04706a4c2e7ac101',
+  'devtools_frontend_revision': '4af8a9af995e889f6de34b1638821db9f914ed85',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libprotobuf-mutator
   # and whatever else without interference from each other.