Remove unrestricted annotations to enable more type checking
Remove unrestricted annotations to enable more type checking

Bug: chromium:1140516
Change-Id: I4f1bed09b9884dce34513094523f3367a138bd0b
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2498230
Commit-Queue: Sigurd Schneider <f04d242e109628a27a0f75fd49a87722bcf291fd@chromium.org>
Reviewed-by: Wolfgang Beyer <573aa99bb19da47d816981118f95c945310dd3f4@chromium.org>

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