Bug 265724 – [LBSE] Misleading/wrong inspector box model values for mask-object-bounding-box-shrink.html

• Status: NEW
• Component: SVG

[Rob Buis]

When inspecting mask-object-bounding-box-shrink.html the mask contents box model indicates a 0.5px x 0.5px size for it. This is either wrong, misleading or both:
- Given the mask units are objectBoundingBox, the calculated mask size should be more like 50px x 50px.
- Since the mask dimension actually depends on the clients object bounding box, and there may be multiple clients, giving absolute values feel wrong anyway.

So I think there could be two less misleading/more correct fixes for the mask content:
- Give relative values (percentages)
- don't give any dimension data at all (gecko does this).

[Karl Dubost]

This is about
LayoutTests/svg/repaint/mask-object-bounding-box-shrink.html

Both Safari and Chrome returns the same computed value: 0.5px
Firefox indeed returns: 0px

[Radar WebKit Bug Importer]

<rdar://problem/119437588>