[webkit-reviews] review requested: [Bug 86021] performance tests should be able to measure runs/sec rather than time : [Attachment 141553] Adds PerfTestRunner.runPerSecond and converts flexbox tests

[bugzilla-daemon at webkit.org]

Ryosuke Niwa <rniwa at webkit.org> has asked  for review:
Bug 86021: performance tests should be able to measure runs/sec rather than
time
https://bugs.webkit.org/show_bug.cgi?id=86021

Attachment 141553: Adds PerfTestRunner.runPerSecond and converts flexbox tests
https://bugs.webkit.org/attachment.cgi?id=141553&action=review