Roll DevTools Frontend from fb005807e661 to c042e00faa0e (2 revisions)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/fb005807e661..c042e00faa0e

2020-06-03 devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com Update DevTools DEPS.
2020-06-03 tvanderlippe@chromium.org Typecheck sdk/SourceMap.js with TypeScript

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:1079233
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I1ca9cc397fe3c26ae4cc7e823b26f884fcf93fce
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2228915Reviewed-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@{#774631}

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': 'fb005807e661b1bd5e8a9db3578e209d708b1326',
+  'devtools_frontend_revision': 'c042e00faa0e7ca215a3b89b82e355532ab8e98d',
   # 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.