GitLab

AXSelection: Added unit tests for retrieving and clearing the current selection, and for cancelling a selection that is in progress

R=dmazzoni@chromium.org, aleventhal@chromium.org

Change-Id: I9bb2589a938930e9e967525c4a627c893eecaa48
Bug: 639340
Reviewed-on: https://chromium-review.googlesource.com/c/1350195Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Commit-Queue: Nektarios Paisios <nektar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611502}