Change record status: 
Project: 
Introduced in branch: 
8.x-1.x
Introduced in version: 
8.x-1.2
Description: 

With the change in how the embed button icon is stored in the configuration entity, the \Drupal\embed\EmbedButtonInterface::getIconFile() method is now deprecated, since there may not be a file entity that corresponds to the icon. It is recommended to use \Drupal\embed\EmbedButtonInterface::getIconUrl() instead.

Impacts: 
Module developers