Rename ChildAt and Parent to get unique names.

To help jumbo compilations, this code has already renamed
Children -> LayerChildren so this follows the same pattern
to help some other jumbo configurations where the plurality
of ChildAt and Parent methods caused problems.

Bug: 786926
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel
Change-Id: I086022931622b1bb670bc1313987ff69182c0990
Reviewed-on: https://chromium-review.googlesource.com/847473
Reviewed-by: enne <enne@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#526521}
1 file changed