2.2.3 [W3C-POINTER] Section 11.2 Mapping for devices that do not support hover

C0003: Mapping devices that do not support hover

The specification states:

 This requires that user agents provide a different mapping for these types of input 
 devices. Whenever a user agent is to dispatch a pointer event for a device that does not 
 support hover, it MAY run the following steps:

IE11 Mode and EdgeHTML Mode (All versions)

The steps are run to properly map pointer events to mouse events as appropriate.