Also rename runningOnLollipopOrHigher() etc in WebRtcAudioUtils to runningOnApi21OrHigher() etc since mapping API numbers to names is error prone. Bug: webrtc:9818 Change-Id: I4a71de72e3891ca2b6fc2341db9131bb2db4cce7 Reviewed-on: https://webrtc-review.googlesource.com/c/103820 Reviewed-by: Sami Kalliomäki <sakal@webrtc.org> Reviewed-by: Henrik Andreassson <henrika@webrtc.org> Commit-Queue: Paulina Hensman <phensman@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25009}