Roll src/third_party/devtools-frontend/src 29c52f9cafce..4eca785b40e3 (23 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/29c52f9cafce..4eca785b40e3

git log 29c52f9cafce..4eca785b40e3 --date=short --first-parent --format='%ad %ae %s'
2020-02-28 aerotwist@chromium.org [e2e] Ensures console messages are populated
2020-02-28 tvanderlippe@chromium.org Fix copy-paste error on dir check
2020-02-28 aerotwist@chromium.org Updates boot perf timing to be 2 decimal places
2020-02-28 aerotwist@chromium.org [e2e] Migrate http/tests/devtools/search/sources-search-scope.js to e2e
2020-02-28 devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com Update DevTools DEPS.
2020-02-28 tvanderlippe@chromium.org Fix clicking on labels for checkboxes
2020-02-28 jacktfranklin@chromium.org Ensure we import `errno` in ts_library.py
2020-02-28 jacktfranklin@chromium.org Remove `String.prototype.computeLineEndings`
2020-02-28 jacktfranklin@chromium.org Typecheck EventTarget.js
2020-02-28 jacktfranklin@chromium.org TypeScript CharacterIdMap_test into Ninja
2020-02-28 aerotwist@chromium.org [perf] Updates boot perf test
2020-02-28 jacktfranklin@chromium.org Typecheck Common.UIString
2020-02-28 tvanderlippe@chromium.org Reland "Typescriptify FormattedContentBuilder + move tests"
2020-02-28 szuend@chromium.org Prepare BreakpointManager.js for asynchronous source mapping
2020-02-28 mathias@chromium.org Revert "Typescriptify FormattedContentBuilder + move tests"
2020-02-28 devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com Update DevTools DEPS.
2020-02-27 tmathmeyer@chromium.org Switch the Media tab to ES Modules
2020-02-27 joselea@microsoft.com Fix Grid accessibility name.
2020-02-27 jacktfranklin@chromium.org Move Trie test to being built with Ninja
2020-02-27 jacktfranklin@chromium.org Typescriptify FormattedContentBuilder + move tests
2020-02-27 kahinds@microsoft.com Remove transparent border-top from Elements tree rows
2020-02-27 tvanderlippe@chromium.org Run TypeScript without building mode
2020-02-27 jacktfranklin@chromium.org Update screenshot testing to enable element screenshots

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@4eca785b40e3

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/+/master/autoroll/README.md

Bug: chromium:1006759,chromium:1011811,chromium:1032016,chromium:1032561,chromium:1046784,chromium:1048378,chromium:1050549,chromium:1051458,chromium:1054925,chromium:963183
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I03cdc3a9812b25c683bf9ddb415064f5a260ef8e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2080301Reviewed-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@{#745444}

DEPS

@@ -246,7 +246,7 @@ 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': '29c52f9cafce2d99df8dff730d56ada8db1b6e2b',
+  'devtools_frontend_revision': '4eca785b40e3e0355cbe4989b9373131d5c7644f',
   # 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.