[Webkit-unassigned] [Bug 97627] New: Optimize stylesheet insertions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=97627

           Summary: Optimize stylesheet insertions
           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


We currently do scope analysis for stylesheets that are added to the end of the active stylesheet list to avoid unnecessary style recalcs and StyleResolver rebuilding. However it is somewhat common to insert <style> elements dynamically to positions other than last. In this case we currently simply force full style recalc. We should do scope analysis and partial style recalcs also in these cases.

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