Roll src/third_party/devtools-frontend/src 71b51fa69ee9..430f61e2a241 (2 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/71b51fa69ee9..430f61e2a241

git log 71b51fa69ee9..430f61e2a241 --date=short --first-parent --format='%ad %ae %s'
2020-01-03 jalyn@microsoft.com Prevent unhandled exception in ModelBreakpoint
2020-01-03 Rob.Paveza@microsoft.com Silent failure in _innerStyleSheetChanged

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@430f61e2a241

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:1019538
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I6136d9bff6271eea2b61501085da10bf7b27f1b8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1986897Reviewed-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@{#728262}

DEPS

@@ -252,7 +252,7 @@ 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': '71b51fa69ee90f804c3f65681481f0ea0cea4093',
+  'devtools_frontend_revision': '430f61e2a24107ae90d2fd54ab466ae2b96ef79d',
   # 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.