Bug 241777

Summary:	TextureMapperLayer::computeOverlapRegions doesn't need to use m_state.contentsRect
Product:	WebKit	Reporter:	Fujii Hironori <Hironori.Fujii>
Component:	Platform	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED INVALID
Severity:	Normal
Priority:	P2
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Fujii Hironori 2022-06-19 23:52:47 PDT

TextureMapperLayer::computeOverlapRegions doesn't need to use m_state.contentsRect

computeOverlapRegions has the following code.

>    if (m_backingStore || m_state.masksToBounds || m_state.maskLayer || hasFilters())
>        localBoundingRect = layerRect();
>    else if (m_contentsLayer || m_state.solidColor.isVisible())
>        localBoundingRect = m_state.contentsRect;

But, I don't know why m_state.contentsRect is used.
It was added by 129278@main (Bug 110762).

Comment 1 Fujii Hironori 2022-06-20 00:16:25 PDT

It might be for content layers with padding and transparent background.