The current content of the input.
data-clear-filters-on-new-query='true' data-clear-filters-on-new-query='false'
data-enable-field-addon='true' data-enable-field-addon='false'
data-enable-query-extension-addon='true' data-enable-query-extension-addon='false'
data-enable-query-suggest-addon='true' data-enable-query-suggest-addon='false'
data-enable-query-syntax='true' data-enable-query-syntax='false'
data-enable-search-as-you-type='true' data-enable-search-as-you-type='false'
data-inline='true' data-inline='false'
data-number-of-suggestions='10'
data-omnibox-timeout='10'
data-placeholder='foo'
data-query-suggest-character-threshold='10'
data-search-as-you-type-delay='10'