Handle invalid nodeId on paint timeline events
Handle invalid nodeId on paint timeline events

In preparation for this chromium patch:

https://chromium-review.googlesource.com/c/chromium/src/+/3107796

Bug: chromium:1191032
Change-Id: I2b4e66131d387f1264d05592689ba86ee3a42b2c
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3142825
Reviewed-by: Andrey Kosyakov <03b08926e49d80331ab322c2b9e0332109fbfd39@chromium.org>
Reviewed-by: Paul Lewis <8915f5d5c39a08c5a3e8a8d7314756e4580816f9@chromium.org>
Commit-Queue: Stefan Zager <542cb5b73770f9741bae40d34cf7a192bc7ad2cc@chromium.org>

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