[Webkit-unassigned] [Bug 260064] New: Use ImmutableStyleProperties for presentation attribute style

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=260064

            Bug ID: 260064
           Summary: Use ImmutableStyleProperties for presentation
                    attribute style
           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

The mutable style here is never actually mutated after construction. Using immutable style is more memory efficient, allows deduplication and improves matched declarations cache performance.

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