Make layer decision at frame tree

NEW
Unassigned

Status

()

Core
Layout: Web Painting
P5
normal
a year ago
a month ago

People

(Reporter: sinker, Unassigned)

Tracking

(Blocks: 1 bug)

Trunk
Points:
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Firefox Tracking Flags

(firefox55 affected)

Details

(Reporter)

Description

a year ago
Making layer decision at frame tree means to decide the layer a frame painted on according the information of frame tree.  For now, we create painted layer after process display item, we don't know what layer a frame will be painted on during building display list.  If we know the layer, we could maintain dirty regions at frame tree too, so the less items will be built too.
Priority: -- → P5
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