Implement UIA_ItemStatusPropertyId

1. https://www.w3.org/TR/core-aam-1.1/#mapping_state-property_table
   This spec maps |aria-sort| for elements which implement the
   HeaderItem Control Type when it's ascending|descending|other.

2. This aligns with the EdgeHTML implementation, and I'm not sure if
   there is any top-level UI that should provide a localized status,
   so for this CL I didn't map it to an ax::mojom::StringAttribute.

Bug: 844149
Change-Id: I173bff73a0786d458b7fee8211282532e226e7b9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1509802
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Commit-Queue: Adam Ettenberger <adettenb@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#640030}
4 files changed