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Issue 732934 link

Starred by 1 user
Status: Assigned
Owner:
schenney@chromium.org
Cc:
█ trchen@chromium.org
vmp...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Android , Windows , Chrome , Mac
Pri: 3
Type: Bug



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LayoutBox::GetBackgroundPaintedExtent calls BackgroundImageGeometry::Calculate but just needs the dest rect

Project Member Reported by schenney@chromium.org, Jun 13 2017 
In LayoutBox::GetBackgroundPaintedExtent a BackgroundImageGeometry object is created and then BackgroundImageGeometry::Calculate is called, that does a while lot of work related to tile sizes and phases etc. But all that LayoutBox needs is the destination rect size, which does not depend on all of those calculations, probably.

Investigate if that is true and hence can be optimized.

Comment 1 by schenney@chromium.org, Jun 27 2018

Cc: trchen@chromium.org
Also try to address the TODO in BackgroundImageGeometry::FixedAttachmentPositioningArea, where this issue is preventing the use of GeometryMapper.
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