All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=903103

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c46f9aaadda64347fe4cb6e626f395087f7f52e02b2425488d9155552829a1a0


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

Win 7 Perf

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

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/1280b08de40000

📍 Found significant differences after each of 2 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/1280b08de40000

[heap] Externalize mark bitmap. by hpayer@chromium.org
https://chromium.googlesource.com/v8/v8/+/17890f67fbd1cafa33f472559f09a1fad70993ce
tasks_per_frame_total_all: 81.74 → 83.42 (+1.68)

[parser] Hoist invalid pattern/arrow reporting out of BinaryOp loop by verwaest@chromium.org
https://chromium.googlesource.com/v8/v8/+/1486ea9c6a3e633e9d9768a68f8408e17af6a38c
tasks_per_frame_total_all: 83.8 → 84.31 (+0.5195)

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

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