GitLab

CL:2242046 introduced ui::UiaRegistrarWin for registering custom UIA
property and event. This change moves the custom UIA event used for
signaling test end to ui::UiaRegistrarWin.

There is no functionality change.

AX-Relnotes:n/a

Bug: 847971
Change-Id: Id1b8852d788d5533e14bc63588fd26669ae78eb5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2261876Reviewed-by: Ian Prest <iapres@microsoft.com>
Commit-Queue: Victor Fei <vicfei@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#782061}