The key to an extra Android.Runtime.JavaList of Java.Lang.Strings that contains the html content to use, if available, for the recognition alternates provided in RecognizerResultsIntent.ExtraVoiceSearchResultStrings. This list should always be the same size as the one provided in RecognizerResultsIntent.ExtraVoiceSearchResultStrings - if a result cannot provide html, that entry in this list should be null, and the implementor of RecognizerResultsIntent.ActionVoiceSearchResults should back off to the corresponding url provided in RecognizerResultsIntent.ExtraVoiceSearchResultUrls, if available, or else should execute a search of its own choosing, based on the recognition result string. Currently this html content should be expected in the form of a uri with scheme RecognizerResultsIntent.UriSchemeInline for the Browser. In the future this may change to a "content://" uri or some other identifier. Anyone who reads this extra should confirm that a result is in fact an "inline:" uri and back off to the urls or strings gracefully if it is not, thus maintaining future backwards compatibility if this changes.