GitLab

This CL adds the "gpu.angle" category to the list of categories in
about:tracing. The "gpu.angle" category was enabled by default and could
not be disabled before.

R=eseckler@chromium.org

Change-Id: I243ffcdf1b170371b312e6895b1544cf1e20e551
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2349348Reviewed-by: Eric Seckler <eseckler@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#796928}