This CL fixes warnings that will cause issues with new versions of the Android NDK. Bug: None Change-Id: Icd119efec6039d4861d89401b84f94c8da29a314 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/160080 Reviewed-by: Steve Anton <steveanton@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29851}