Roll src/third_party/devtools-frontend/src d2610646af11..bc42a63a70fc (5 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/d2610646af11..bc42a63a70fc

git log d2610646af11..bc42a63a70fc --date=short --first-parent --format='%ad %ae %s'
2019-11-28 tvanderlippe@chromium.org Remove conditional for external_frontend
2019-11-28 aerotwist@chromium.org Migrates web_audio/ to esm
2019-11-28 mathias@chromium.org Fix `npm test` when run from the devtools/devtools-frontend repo
2019-11-28 aerotwist@chromium.org Migrates security/ to esm
2019-11-28 aerotwist@chromium.org Updates deps script; adds Puppeteer

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@bc42a63a70fc

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:1006759,chromium:1006759,chromium:1027519
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: Ic4d79163ce9337f8fbce3d8507d4548e56c8bff1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1942490Reviewed-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@{#720008}

DEPS

@@ -243,7 +243,7 @@ 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': 'd2610646af11abd625fe89cd8ed7f761cd20a49d',
+  'devtools_frontend_revision': 'bc42a63a70fc4dfe4a1224725c4cf9ab82b51289',
   # 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.