Theme_Upgrader::upgrade()
Method: Upgrade a theme.
Source: wp-admin/includes/class-theme-upgrader.php:244
Method: Upgrade a theme.
Source: wp-admin/includes/class-theme-upgrader.php:244
Method: Upgrade several themes at once.
Source: wp-admin/includes/class-theme-upgrader.php:314
Method: Check that the package source contains a valid theme.
Source: wp-admin/includes/class-theme-upgrader.php:430