Roll DevTools Frontend from f78841938e2d to 6ddca3188e2e (4 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/f78841938e2d..6ddca3188e2e

2021-01-08 cpinnamaneni@microsoft.com keyboard accessiblity for Add new context menu in data grid
2021-01-08 jacktfranklin@chromium.org Workflow improvements to component docs
2021-01-08 tvanderlippe@chromium.org Use top level await in component_docs
2021-01-08 tvanderlippe@chromium.org Remove component_docs from GRD

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:1164006
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I00fcbfb3bc7a020151af395bfa4ef77ae70ab524
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2618161Reviewed-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@{#841593}

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': 'f78841938e2d94771268781d051b5d3610039c69',
+  'devtools_frontend_revision': '6ddca3188e2e9097f9e7173637f6b40883d2c0fe',
   # 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.