Roll DevTools Frontend from 75770d6f7f01 to 9cbd788e95fc (12 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/75770d6f7f01..9cbd788e95fc

2020-07-28 janscheffler@chromium.org Migrate `front_end/js_main` to `devtools_entrypoint`
2020-07-28 alexrudenko@chromium.org Move inspector_overlay test files into debug/
2020-07-28 aerotwist@chromium.org Migrate protocol_client to devtools_entrypoint
2020-07-28 janscheffler@chromium.org Migrate `front_end/ui` to `devtools_entrypoint`
2020-07-28 jobay@google.com Introduce custom query handlers for piercing shadow dom
2020-07-28 changhaohan@chromium.org Add persistent grid overlay and hook up with Grid adorner
2020-07-28 pfaffe@chromium.org Support location information with missing column information
2020-07-28 janscheffler@chromium.org Add _sources suffix to ensure sorting in .gni files
2020-07-28 jacktfranklin@chromium.org Include nested interfaces when extending types
2020-07-28 leese@chromium.org Support organizing variables into namespaces
2020-07-28 jacktfranklin@chromium.org Migrate text_editor and cm to devtools_entrypoint
2020-07-28 jacktfranklin@chromium.org Make cross-reference script show errors

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:1047356,chromium:1056264,chromium:1066772,chromium:1101738,chromium:1109784
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I95d5aea4b84fc24a6e8dcac4348c3b6774bc7458
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2323247Reviewed-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@{#792339}

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': '75770d6f7f01b53ac6c13382e14e9e037255ee8b',
+  'devtools_frontend_revision': '9cbd788e95fc46b231b5241fa2c7be032cc313dd',
   # 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.