Roll DevTools Frontend from 2e018a8f25cf to 9e7836c35d48 (3 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/2e018a8f25cf..9e7836c35d48

2020-12-08 wolfi@chromium.org [DarkMode] serviceWorkersView.css
2020-12-08 tvanderlippe@chromium.org Fix proxy configuration for images when debugging Karma tests
2020-12-08 jacktfranklin@chromium.org Fix keyboard usage of docking menu

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/+doc/master/autoroll/README.md

Bug: chromium:1152736
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: Id1c7a79bc5afaa97b6e7457c2021a5e2ce2f0973
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2578919Reviewed-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@{#834684}

DEPS

@@ -274,7 +274,7 @@ 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': '2e018a8f25cfd3b68516554e7e1c063d72ee9892',
+  'devtools_frontend_revision': '9e7836c35d4868198f7d75daf862e456fcdcc9f3',
   # 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.