Roll DevTools Frontend from 8c02e882a3f2 to 4a89ed360b5f (2 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/8c02e882a3f2..4a89ed360b5f

2020-07-29 janscheffler@chromium.org [TypeScript] Migrate `front_end/source_frame` to `devtools_entrypoint`
2020-07-29 jacktfranklin@chromium.org Copy sourcemaps into resources/inspector in is_debug mode.

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:1101738
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I2fd74219fe792fd7184ded977a84af41964d156e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2327390Reviewed-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@{#792831}

DEPS

@@ -266,7 +266,7 @@ 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': '8c02e882a3f210f20582505e756756d400a99c5b',
+  'devtools_frontend_revision': '4a89ed360b5f0549063b55e053a02deebcee7862',
   # 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.