supportsFixedRootBackgroundCompositing 2071 Source/core/rendering/RenderObject.cpp             if (view()->compositor()->supportsFixedRootBackgroundCompositing()) {
supportsFixedRootBackgroundCompositing 1309 Source/core/rendering/compositing/RenderLayerCompositor.cpp     if (!supportsFixedRootBackgroundCompositing())
supportsFixedRootBackgroundCompositing 1664 Source/core/rendering/compositing/RenderLayerCompositor.cpp     return supportsFixedRootBackgroundCompositing() && m_renderView.rootBackgroundIsEntirelyFixed();
supportsFixedRootBackgroundCompositing  123 Source/core/rendering/compositing/RenderLayerCompositor.h     bool supportsFixedRootBackgroundCompositing() const;