void SVGResourcesCache::clientWasAddedToTree(LayoutObject* layoutObject, const ComputedStyle& newStyle)
{
    if (!layoutObject->node())
        return;
    LayoutSVGResourceContainer::markForLayoutAndParentResourceInvalidation(layoutObject, false);

    if (!layoutObjectCanHaveResources(layoutObject))
        return;
    SVGResourcesCache* cache = resourcesCacheFromLayoutObject(layoutObject);
    cache->addResourcesFromLayoutObject(layoutObject, newStyle);
}
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);
}