All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=911548

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=d653c37179815a79fd901267f908381cda946f12215494dcf8033ad0ddfac20e


Bot(s) for this bug's original alert(s):

mac-10_13_laptop_high_end-perf

rendering.desktop - Benchmark documentation link:
  https://bit.ly/rendering-benchmarks

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/145df34be40000

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/145df34be40000

gpu: Disable CCPR for OOP raster. by khushalsagar@chromium.org
https://chromium.googlesource.com/chromium/src/+/193eda157bdb1c66d9afdc9c54a36e0ccc249293
thread_total_all_cpu_time_per_frame: 13.52 → 16.36 (+2.841)

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Benchmark documentation link:
  https://bit.ly/rendering-benchmarks

I can see the GPU main thread completely pegged in the before/after traces. I have requested another run with more categories for debugging: https://pinpoint-dot-chromeperf.appspot.com/job/123c6829940000

+csmartdalton FYI.