tell the host application to display an input prompt dialog . concode_field_sep PlaceHolder placeHolder concode_field_sep void onAlert concode_elem_sep void onConfirm concode_elem_sep void onScriptMessage concode_elem_sep void onDebugRequest concode_elem_sep void onReady
void function ( GeckoView arg0 , GeckoView . Browser arg1 , String arg2 , String arg3 , GeckoView . PromptResult arg4 ) { arg4 . cancel ( ) ; }