browser-jb/res/values/bookmarks_icons.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <array name="bookmark_preloads">
        <item>@raw/favicon_bbc</item>
        <item>@raw/thumb_bbc</item>
        <item>@raw/favicon_bbc</item>
        <item>@raw/thumb_bbc4</item>
        <item>@raw/favicon_eff</item>
        <item>@raw/thumb_eff</item>
        <item>@raw/favicon_youtube</item>
        <item>@raw/thumb_youtube</item>
    </array>
</resources>