[Webkit-unassigned] [Bug 261439] New: Remove outlineBoundsForRepaint which is no longer needed

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Sep 11 15:39:39 PDT 2023


https://bugs.webkit.org/show_bug.cgi?id=261439

            Bug ID: 261439
           Summary: Remove outlineBoundsForRepaint which is no longer
                    needed
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Ever since https://commits.webkit.org/16814@main we've tracked two repaint rects per layer: the clippedOverflowRect, and the outlineBounds.

outlineBounds is simply the border box, inflated (incorrectly) for outline and box-shadow, converted to absolute coordinates.
clippedOverflowRect is the visual overflow rect, clipped by ancestors and mapped to absolute coordinates.

Now that outlines contribute to visual overflow, there should be no need for outlineBounds repaints.

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