Open Bug 1405847 Opened 2 years ago Updated 3 months ago

nsCSSRendering::FindNonTransparentBackgroundFrame is expensive

Categories

(Core :: Graphics: WebRender, enhancement, P2)

enhancement

Tracking

()

Tracking Status
firefox57 --- unaffected
firefox58 --- unaffected

People

(Reporter: jrmuizel, Unassigned)

References

(Blocks 1 open bug)

Details

(Whiteboard: [wr-reserve])

As I understand it this is used to get the background color for 3d borders. I think we should stop doing this work.

Rationale:
- they are rare
- they could be emulated by border-image
- this work is not done by Chrome or Safari
- they are not supported by WebRender

Note: IE added support for this in IE 10. I don't know why...
Whiteboard: [wr-mvp] [triage]
Priority: -- → P2
Whiteboard: [wr-mvp] [triage] → [wr-mvp]
Depends on: 1382896
Priority: P2 → P3
Whiteboard: [wr-mvp] → [wr-reserve]
Doesn't need to block
No longer blocks: stage-wr-trains
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