Roll src/third_party/devtools-frontend/src d9b33e92da7f..c1c5bec5ed00 (6 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/d9b33e92da7f..c1c5bec5ed00

git log d9b33e92da7f..c1c5bec5ed00 --date=short --first-parent --format='%ad %ae %s'
2019-12-10 mandy.chen@microsoft.com Check for null to avoid UnhandledPromiseRejection in Main.Main.SearchActionDelegate.handleAction
2019-12-10 tvanderlippe@chromium.org Revert "Updates common/ legacy; resoves internal refs"
2019-12-10 aerotwist@chromium.org Updates common/ legacy; resoves internal refs
2019-12-10 aerotwist@chromium.org Migrates main/ to esm
2019-12-10 tvanderlippe@chromium.org Migrate elements/ to use ES-imports
2019-12-10 tvanderlippe@chromium.org Update Runtime to automatically lazy load -legacy files

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@c1c5bec5ed00

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
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: Ie104c2b936266fa7e331567cd51331976bbbffdd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1960775Reviewed-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@{#723560}

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': 'd9b33e92da7fd9f5826615a2266d1c5b61e83c2b',
+  'devtools_frontend_revision': 'c1c5bec5ed00fbe02f6684cceb2bc5d408bd8ffb',
   # 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.