GitLab

Made AXNode::IsDescendantOf work the same across BrowserAccessibility, AXPlatformNodeBase and AXNode

An inconsistency in the behavior of this method that
I found while merging BrowserAccessibilityPosition and AXNodePosition.

AX-Relnotes: n/a.

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

Change-Id: I34ce5d10bc67a7b78438e94a4a9c4b6c21fd5bc9
Bug: 1049261
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2644620Reviewed-by: Aaron Leventhal <aleventhal@chromium.org>
Commit-Queue: Nektarios Paisios <nektar@chromium.org>
Auto-Submit: Nektarios Paisios <nektar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#846221}