Bug 1445213 - 8.88 - 11.61% tabpaint (linux64, osx-10-10) regression on push 664c633802d4cd0e2c32a271a2d29107b5b43f38
We weren’t firing MozAfterPaint until the next paint. A later patch to the Tab warming infrastructure fixed this.
Bug 1447326 - Tab warming Telemetry on warming state of tabs seems to be pretty wrong