Roll DevTools Frontend from 2137e8afdcc7 to c2bd4cfa7063 (2 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/2137e8afdcc7..c2bd4cfa7063

2020-08-17 devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com Update DevTools DEPS.
2020-08-17 jobay@google.com [e2e] Fix flaky test

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:1112692
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I50404da2db7ea1733628510caf87101afa9a6d74
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2358402Reviewed-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@{#798621}

DEPS

@@ -266,7 +266,7 @@ 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': '2137e8afdcc76bde9b4a46786513d68b4a66c699',
+  'devtools_frontend_revision': 'c2bd4cfa70635ffc600c7e153c4ab141ad711bf5',
   # 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.