[Webkit-unassigned] [Bug 261025] New: Allow using longer ancestor chain in StyleCustomPropertyData

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=261025

            Bug ID: 261025
           Summary: Allow using longer ancestor chain in
                    StyleCustomPropertyData
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: koivisto at iki.fi

Currently only one ancestor is allowed. It is typical to have many properties defined on :root. If we more definition further down into the tree in multiple levels then all those properties get copied and we can get large maps duplicated to many elements. This also makes equality comparisons slow.

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