Attempt to fix rendering bug with scrollbars
Attempt to fix rendering bug with scrollbars

Scrollbars were rendering to old window size on different tabs for Brad with display: none.  This change has the same CPU benefit as display: none and I think it'll work better for Brad.

Auditors: da39a3ee5e6b4b0d3255bfef95601890afd80709@diracdeltas

jonathansampson/browser-laptop,dcposch/browser-laptop,manninglucas/browser-laptop,manninglucas/browser-laptop,jonathansampson/browser-laptop,pmkary/braver,darkdh/browser-laptop,Sh1d0w/browser-laptop,timborden/browser-laptop,willy-b/browser-laptop,dcposch/browser-laptop,MKuenzi/browser-laptop,diasdavid/browser-laptop,diasdavid/browser-laptop,MKuenzi/browser-laptop,dcposch/browser-laptop,diasdavid/browser-laptop,timborden/browser-laptop,luixxiul/browser-laptop,pmkary/braver,diasdavid/browser-laptop,luixxiul/browser-laptop,manninglucas/browser-laptop,timborden/browser-laptop,Sh1d0w/browser-laptop,manninglucas/browser-laptop,dcposch/browser-laptop,jonathansampson/browser-laptop,pmkary/braver,jonathansampson/browser-laptop,MKuenzi/browser-laptop,timborden/browser-laptop,willy-b/browser-laptop,luixxiul/browser-laptop,darkdh/browser-laptop,Sh1d0w/browser-laptop,willy-b/browser-laptop,darkdh/browser-laptop,Sh1d0w/browser-laptop,darkdh/browser-laptop,MKuenzi/browser-laptop,luixxiul/browser-laptop,willy-b/browser-laptop,pmkary/braver