Bug 1258751 - followup: remove out-of-date comment. r=me DONTBUILD

MozReview-Commit-ID: 8M8yHsDc1Lg

--HG--
extra : rebase_source : 3f0d695e8307bb735d2026470dcec90c9887ec1a
This commit is contained in:
cku 2016-11-07 17:09:57 +08:00
parent 592b02e148
commit 2fbd5c11c2

View File

@ -462,9 +462,6 @@ GenerateMaskSurface(const PaintFramesParams& aParams,
return DrawResult::SUCCESS;
}
// Mask composition result on CoreGraphic::A8 surface is not correct
// when mask-mode is not add(source over). Switch to skia when CG backend
// detected.
RefPtr<DrawTarget> maskDT =
ctx.GetDrawTarget()->CreateSimilarDrawTarget(maskSurfaceRect.Size(),
SurfaceFormat::A8);