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    2011-03-14 Anton Muhin <antonm@chromium.org> · 8675b60b
    antonm@chromium.org authored
            Reviewed by Adam Barth.
    
            [v8] Rework object group building.
            https://bugs.webkit.org/show_bug.cgi?id=55399
    
            Instead of going top-down (from owner to owned elements), go up---from objects
            to their group ids.  That fits better to v8's object grouping model and guarantees
            that each wrapper belongs to the single group.
    
            Alas, this cannot be implemented for one kind of objects---CSSProperties.
    
            Part of core GC algorithm and tested extensively by exisiting layout tests.
    
            * platform/chromium/test_expectations.txt: Temporary suppress text differences.
    2011-03-14  Anton Muhin  <antonm@chromium.org>
    
            Reviewed by Adam Barth.
    
            [v8] Rework object group building.
            https://bugs.webkit.org/show_bug.cgi?id=55399
    
            Instead of going top-down (from owner to owned elements), go up---from objects
            to their group ids.  That fits better to v8's object grouping model and guarantees
            that each wrapper belongs to the single group.
    
            Alas, this cannot be implemented for one kind of objects---CSSProperties.
    
            Part of core GC algorithm and tested extensively by exisiting layout tests.
    
            * bindings/scripts/CodeGeneratorV8.pm:
            * bindings/scripts/test/V8/V8TestInterface.cpp:
            * bindings/scripts/test/V8/V8TestMediaQueryListListener.cpp:
            * bindings/scripts/test/V8/V8TestObj.cpp:
            * bindings/v8/V8GCController.cpp:
            (WebCore::calculateGroupId):
            (WebCore::calculateRootStyleSheet):
            (WebCore::GrouperVisitor::visitDOMWrapper):
            (WebCore::GrouperVisitor::applyGrouping):
            (WebCore::V8GCController::gcPrologue):
            * bindings/v8/WrapperTypeInfo.h:
            (WebCore::WrapperTypeInfo::isSubclass):
            * css/CSSRuleList.h:
            (WebCore::CSSRuleList::styleList):
            * css/StyleSheetList.h:
            (WebCore::StyleSheetList::document):
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@81092 268f45cc-cd09-0410-ab3c-d52691b4dbfc
    8675b60b