[Webkit-unassigned] [Bug 83426] New: Don't expose internal CSSValues in API

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=83426

           Summary: Don't expose internal CSSValues in API
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: koivisto at iki.fi


The CSSValues returned from functions like CSSStyleDeclaration.getPropertyCSSValue() are currently the same instances we use internally. This creates various problems. The values can't be shared between documents as the wrappers would be shared too. Having to maintain per-document CSSValuePools complicate the architecture and increase memory usage. This also prevents sharing style sheet data structures between documents.

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