Roll src/third_party/devtools-frontend/src 3181426885c3..8297869795cb (3 commits)

https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/3181426885c3..8297869795cb

git log 3181426885c3..8297869795cb --date=short --first-parent --format='%ad %ae %s'
2020-03-12 jacktfranklin@chromium.org Generate `protocol.d.ts` files in devtools-frontend
2020-03-12 taoalpha@google.com Fix “open in new tab” for URLs with newlines
2020-03-12 tvanderlippe@chromium.org Add missing license headers

Created with:
  gclient setdep -r src/third_party/devtools-frontend/src@8297869795cb

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:1011811
Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
Change-Id: I9cb1aeaacf799fd6f182c0e353d03ec9970edd93
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2100579Reviewed-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@{#749745}

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': '3181426885c3f3eb066cd2fc189158cda3ae6463',
+  'devtools_frontend_revision': '8297869795cb9cb79f2f6910161a3f929949f454',
   # 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.