Roll DevTools Frontend from 8900cd2cdaec to ffd66905c46a (6 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/8900cd2cdaec..ffd66905c46a

2020-10-13 wolfi@chromium.org Add dedicated workers to frame tree
2020-10-13 petermarshall@chromium.org Don't instantiate a SourceFormatter when modules are imported
2020-10-13 yangguo@chromium.org [ts] Type-checkk har_importer/HARImporter.js
2020-10-13 wolfi@chromium.org Fix overlapping text for COOP policy in frame details
2020-10-13 wolfi@chromium.org Add whitespace to frame details->secure context
2020-10-13 szuend@chromium.org Update DevTools protocol

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:1011811,chromium:1093247,chromium:1122507,chromium:1136848
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I6bdfc6027bc3fcb16a8f6bf2fd43c2cdcbe347cc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2467539Reviewed-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@{#816503}

DEPS

@@ -262,7 +262,7 @@ 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': '8900cd2cdaec0cdd58a05bba5e66c6b2263f440e',
+  'devtools_frontend_revision': 'ffd66905c46a7ab6e744e2d67473e20a766ebb1c',
   # 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.