Implement empty transactions for opacity-only changes (when possible)

NEW
Unassigned

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()

6 years ago
a year ago

People

(Reporter: cjones, Unassigned)

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(Not tracked)

Details

(Whiteboard: [tech-p2])

Followup to bug 790505.  The best way to do is probably to reuse the ShouldPrerender() logic for nsDisplayOpacity, then implement an analogous nsIFrame::TryUpdateOpacityOnly().
Need to check, but may needed for competitive parity and optimizes important content use case, e.g. in b2g homescreen.
Whiteboard: [tech-p2]
Blocks: 879203
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