Roll src/third_party/devtools-frontend/src fff69a79f984..d1cfda327db2 (3 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/fff69a79f984..d1cfda327db2

git log fff69a79f984..d1cfda327db2 --date=short --first-parent --format='%ad %ae %s'
2019-11-27 tvanderlippe@chromium.org Migrate text_editor/ and cm_web_modes/ to ESM
2019-11-27 liviurau@chromium.org [devtools] Whitespace to test devtools recipe
2019-11-27 aerotwist@chromium.org Migrates layer_viewer/ to esm

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@d1cfda327db2

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: chromium:1006759,chromium:1018837,chromium:1006759
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I06e0c39403f8f8c3871b6cd2458eb27118832f51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1940290Reviewed-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@{#719601}

DEPS

@@ -243,7 +243,7 @@ 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': 'fff69a79f984f215bc933880360e9332d649b397',
+  'devtools_frontend_revision': 'd1cfda327db206b62ec1976e28d17e2b419bb746',
   # 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.