Add markPaintTime() explainer#1303

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JosephJin0815 wants to merge 10 commits intoMicrosoftEdge:mainfrom

JosephJin0815:user/wangsongj/mark-paint-time

Commits on Apr 16, 2026

Add markPaintTime() explainer
Wangsong Jin
committed

Commits on Apr 22, 2026

Add rendering pipeline diagrams and timing section
Wangsong Jin
committed
Move WebIDL to appendix, simplify Proposed API for web developers
Wangsong Jin
committed
Refine Problem section and update paint-time diagram
Wangsong Jin
committed
Add rPAF code example and soften alternative assessment
Wangsong Jin
committed
Add Behavior section to clarify markPaintTime() semantics
Wangsong Jin
committed
Add Open Questions section: paintTime vs post-paint timestamp
Wangsong Jin
committed
Fix presentationTime - paintTime description
Wangsong Jin
committed
Add code example for rAF + setTimeout workaround
Wangsong Jin
committed
Update paint-time-pipeline.png diagram
Wangsong Jin
committed