bower_components/paper-date-picker/paper-date-picker-icons.html

<link rel="import" href="../iron-iconset-svg/iron-iconset-svg.html">
<iron-iconset-svg size="24" name="date-picker">
    <svg>
        <defs>
            <g id="chevron-left"><path d="M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z"></path></g>
            <g id="chevron-right"><path d="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"></path></g>
        </defs>
    </svg>
</iron-iconset-svg>