Bug 257788

Summary: Investigate using Markable instead of std::optional for ScrollbarColor
Product: WebKit Reporter: Luke Warlow <lwarlow>
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: RESOLVED INVALID    
Severity: Normal CC: webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 16   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 257571    
Bug Blocks: 231590    

Description Luke Warlow 2023-06-07 03:21:21 PDT 
We should check with the dump-class-layout, but the optional might make it align at 12 bytes (4 for each StyleColor).
Using a custom Markable<ScrollbarColor> when any of the underlying color is invalid could save 4 bytes
Comment 1 Radar WebKit Bug Importer 2023-06-14 03:22:17 PDT 
<rdar://problem/110765163>
Comment 2 Luke Warlow 2023-06-16 03:26:22 PDT 
Implemented as part of initial bug