[Webkit-unassigned] [Bug 163849] New: [Render Tree Mutation] Immutable render tree during layout.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=163849

            Bug ID: 163849
           Summary: [Render Tree Mutation] Immutable render tree during
                    layout.
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zalan at apple.com
                CC: simon.fraser at apple.com

We've learned in the past that mutating the render tree during layout could lead to use-after-free type of security issues. We should try to transfer tree mutation logic from layout time to after style resolve time.

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