Roll src/third_party/devtools-frontend/src 80517cb9ee4c..29781ded1b6f (2 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/80517cb9ee4c..29781ded1b6f

git log 80517cb9ee4c..29781ded1b6f --date=short --first-parent --format='%ad %ae %s'
2020-03-17 szuend@chromium.org Make live location update handlers async and properly await {uiLocation}
2020-03-17 aerotwist@chromium.org [global] Remaps self.Bindings.cssWorkspaceBinding

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@29781ded1b6f

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:1032016,chromium:1058320
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I1f00a99108fb71ebafa16a2f41422559d79d4778
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2107783Reviewed-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@{#751120}

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': '80517cb9ee4c901d7bab92ee66beb12f63ce0567',
+  'devtools_frontend_revision': '29781ded1b6f0b58b414ea941f9c4363afc047c1',
   # 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.