[Webkit-unassigned] [Bug 104822] New: Implement CSSSupportsRule

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=104822

           Summary: Implement CSSSupportsRule
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: WebExposed
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: pablof at motorola.com
            Blocks: 103506


http://dev.w3.org/csswg/css3-conditional/#the-csssupportsrule-interface

Right now @supports is not creating CSSSupportRules, so they don't show up in the stylesheets' cssRules, and also creates problems like the one in http://hg.csswg.org/test/file/5f94e4b03ed9/contributors/opera/submitted/css3-conditional/at-supports-004.html Namely, @support rules declared within @media are applied whether the media query applies or not.

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