Migrate references of shape_detection::mojom::FaceDetection[Provider]

Convert the remaining bits in both the implementation and clients from the
browser and renderer processes for the mojom.FaceDetection[Provider]
interface, and adapt tests.

Bug: 955171, 978694
Change-Id: I97c5ebebb2d3e3df24a4fe481987042ce0dff9de
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1827279
Reviewed-by: Reilly Grant <[email protected]>
Reviewed-by: Kentaro Hara <[email protected]>
Reviewed-by: Matt Falkenhagen <[email protected]>
Reviewed-by: Oksana Zhuravlova <[email protected]>
Commit-Queue: Mario Sanchez Prada <[email protected]>
Cr-Commit-Position: refs/heads/master@{#701268}
11 files changed