Roll src/third_party/devtools-frontend/src 27a4c55af35c..15d4c9308d6b (1 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/27a4c55af35c..15d4c9308d6b

git log 27a4c55af35c..15d4c9308d6b --date=short --first-parent --format='%ad %ae %s'
2020-02-14 jacktfranklin@chromium.org [Unittests] Tidy up Karma config variables

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@15d4c9308d6b

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: I3f95c0f088ec8106191d1e11197d6630ea18ef03
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2056983Reviewed-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@{#741409}

DEPS

@@ -242,7 +242,7 @@ 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': '27a4c55af35c9cc755af3dd1aba22cf8e2ddd674',
+  'devtools_frontend_revision': '15d4c9308d6bef2679ad80f2e5e236790877c5fc',
   # 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.