Add autocomplete support when searching Danbooru from the Chrome address bar. If you type "danb<tab>" in the address bar then search for a tag, then autocomplete results from Danbooru will appear as search suggestions in Chrome. Note that the "Autocomplete searches and URLs" Chrome setting must be enabled for this to work. Ref: * http://dev.chromium.org/tab-to-search * https://developer.mozilla.org/en-US/docs/Archive/Add-ons/Supporting_search_suggestions_in_search_plugins * https://github.com/dewitt/opensearch/blob/master/mediawiki/Specifications/OpenSearch/Extensions/Suggestions/1.1/Draft%201.wiki