Roll DevTools Frontend from d3ba0ee3a4e7 to b6c8813f8281 (3 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/d3ba0ee3a4e7..b6c8813f8281

2020-09-25 vidorteg@microsoft.com Locking property names in the styles box diagram
2020-09-25 joselea@microsoft.com Remove experiment for movable tabs
2020-09-25 cpinnamaneni@microsoft.com manifest icon title fix for long strings

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:1075732,chromium:1131659
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I198e19d8a3c6514c84116c8e7db330fc67083cb0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2432277Reviewed-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@{#810790}

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': 'd3ba0ee3a4e7a971206ace3248c409bc6bea7516',
+  'devtools_frontend_revision': 'b6c8813f8281a32d5fb31fdffa3c2e0e9365a51f',
   # 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.