Roll DevTools Frontend from 9e417d1e36be to a8b2b4a5eb39 (5 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/9e417d1e36be..a8b2b4a5eb39

2021-01-19 janscheffler@chromium.org [JSDOC2TS]: Migrate screencast
2021-01-19 andoli@chromium.org [module.json extensions] js_profiler
2021-01-19 andoli@chromium.org [module.json extensions] layers
2021-01-19 tvanderlippe@chromium.org Migrate trimEndWithMaxLength to string-utilities
2021-01-19 andoli@chromium.org [module.json extensions] linear_memory_inspector

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/+doc/master/autoroll/README.md

Bug: chromium:1050549,chromium:1134103,chromium:1158760
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: Ia641ac97565ec546c6829d4396b3e1d805d504b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2637997Reviewed-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@{#844823}

DEPS

@@ -278,7 +278,7 @@ 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': '9e417d1e36be7ed63ec1d9fd40868b5da9de7de1',
+  'devtools_frontend_revision': 'a8b2b4a5eb3968236adf086f3e6d03be6dc8d318',
   # 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.