- Revision 3526492: /wp-core-media-widgets/trunk/wp-includes/widgets

• ..
• class-wp-widget-media-audio.php
• class-wp-widget-media-gallery.php
• class-wp-widget-media-image.php
• class-wp-widget-media-video.php
• class-wp-widget-media.php
• class-wp-widget-visual-text.php