Roll src/third_party/devtools-frontend/src 605c93fb246c..55d00afb3680 (2 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/605c93fb246c..55d00afb3680

git log 605c93fb246c..55d00afb3680 --date=short --first-parent --format='%ad %ae %s'
2020-04-09 brcui@microsoft.com Focus default element after showing Settings screen
2020-04-09 brgoddar@microsoft.com Network: Expand Parent Frame Nodes on Reveal

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@55d00afb3680

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:1068747,chromium:1069337
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I9e9be7a18c54df06499bc178d01ad1b5289ea281
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2144979Reviewed-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@{#758069}

DEPS

@@ -246,7 +246,7 @@ 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': '605c93fb246ca60e4fd860a20ee89975022f7b91',
+  'devtools_frontend_revision': '55d00afb368022799de231abd2494cef9921c8a1',
   # 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.