function verifyOutdated(elementNode, style)
        {
            return elementNode === this._elementNode() && style ? new WebInspector.SharedSidebarModel.ComputedStyle(elementNode, style) : /** @type {?WebInspector.SharedSidebarModel.ComputedStyle} */(null);
        }
@param {!WebInspector.DOMNode} elementNode
@param {?Map.<string, string>} style
@return {?WebInspector.SharedSidebarModel.ComputedStyle}
@this {WebInspector.SharedSidebarModel}