Roll DevTools Frontend from 49e6f89bf28a to 42297a7669fc (2 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/49e6f89bf28a..42297a7669fc

2020-06-23 jalyn@microsoft.com Reveal which shortcuts are provided by preset
2020-06-23 mamir@chromium.org [Autofill] Remove unnecessary keypress in a test in Test.js

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:1030649,chromium:174309
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: Idd7177cc54aadbd47b92be16857197628abb02fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2261489Reviewed-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@{#781664}

DEPS

@@ -253,7 +253,7 @@ 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': '49e6f89bf28a0154f3bb37eda88e0a1724299b13',
+  'devtools_frontend_revision': '42297a7669fc2a55e0994fe52b72db369a5bcc55',
   # 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.