void SVGResourcesCache::clientStyleChanged(LayoutObject* layoutObject, StyleDifference diff, const ComputedStyle& newStyle)
{
    ASSERT(layoutObject);
    ASSERT(layoutObject->node());
    ASSERT(layoutObject->node()->isSVGElement());

    if (!diff.hasDifference() || !layoutObject->parent())
        return;

    // In this case the proper SVGFE*Element will decide whether the modified CSS properties require a relayout or paintInvalidation.
    if (layoutObject->isSVGResourceFilterPrimitive() && !diff.needsLayout())
        return;

    // Dynamic changes of CSS properties like 'clip-path' may require us to recompute the associated resources for a layoutObject.
    // FIXME: Avoid passing in a useless StyleDifference, but instead compare oldStyle/newStyle to see which resources changed
    // to be able to selectively rebuild individual resources, instead of all of them.
    if (layoutObjectCanHaveResources(layoutObject)) {
        SVGResourcesCache* cache = resourcesCacheFromLayoutObject(layoutObject);
        cache->removeResourcesFromLayoutObject(layoutObject);
        cache->addResourcesFromLayoutObject(layoutObject, newStyle);
    }

    LayoutSVGResourceContainer::markForLayoutAndParentResourceInvalidation(layoutObject, false);
}
void LayoutScrollbarPart::styleDidChange(StyleDifference diff, const ComputedStyle* oldStyle)
{
    LayoutBlock::styleDidChange(diff, oldStyle);
    setInline(false);
    clearPositionedState();
    setFloating(false);
    setHasOverflowClip(false);
    if (oldStyle && m_scrollbar && m_part != NoPart && (diff.needsPaintInvalidation() || diff.needsLayout()))
        m_scrollbar->theme()->invalidatePart(m_scrollbar, m_part);
}