[Webkit-unassigned] [Bug 60979] New: SVGRootInlineBox triggers calculateBoundaries twice in layout

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=60979

           Summary: SVGRootInlineBox triggers calculateBoundaries twice in
                    layout
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: Performance
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: leviw at google.com
                CC: eric at webkit.org, zimmermann at kde.org,
                    leviw at chromium.org


Within computerPerCharacterLayoutInformation, first layoutChildBoxes is called. This function calls calculateBoundaries on all child boxes. Directly afterwards, layoutRootBox determines the rect for itself based on its children, but instead of using the values just calculated in the previous step, they're re-calculated. There is no early return in calculateBoundaries.

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