Update DevTools DEPS (reviewed)
Update DevTools DEPS (reviewed)

This roll requires a manual review. See http://go/reviewed-rolls for guidance.

Rolling third_party/inspector_protocol: https://chromium.googlesource.com/deps/inspector_protocol/+log/6901e55..dec7ec1

R=devtools-waterfall-sheriff-onduty@grotations.appspotmail.com

Bug: none
Change-Id: Ifb41f11630654f20f5072938b2d398547700086a
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3943198
Commit-Queue: Simon Zünd <38944668e9e2ca98ccd0275b53370f90fa55c113@chromium.org>
Reviewed-by: Simon Zünd <38944668e9e2ca98ccd0275b53370f90fa55c113@chromium.org>

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend