GitLab

AXPlatformNodeAuraLinux was returning always 0 for GetIndexInParent, and
adding an ATK specific implementation of get_index_in_parent. As a result,
AX API would not return the right value, even if ATK would.

This fix makes get_index_in_parent rely on GetIndexInParent, and
GetIndexInParent use the delegate to obtain the value.

Bug: None.
Change-Id: Ic8d79da9f481c2cf92f28eefeb6b2030cce5e657
Reviewed-on: https://chromium-review.googlesource.com/806037
Commit-Queue: José Dapena Paz <jose.dapena@lge.com>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#521720}