Emilio Cobos Álvarez c9d4405306 Bug 1743310 - Remove paint flashing. r=gfx-reviewers,lsalzman
It's only meaningfully read in two places:

 * WebRender fallback code.
 * Some widget DEBUG-only code, which on Linux is ifdef'd and on Windows does
   some rather sketchy things like sleeping for 30ms

So I think it should be ok to remove, since WR fallback has its own flashing
pref as well, IIUC.

Differential Revision: https://phabricator.services.mozilla.com/D132313
2021-11-30 11:46:08 +00:00
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