
The minimum amount of buffered audio required to prevent underrun may vary depending on the platform, and on the audio config. Add an optional method so that different platforms can specify the appropriate value. BUG= internal b/65689704 Change-Id: Ifb9b05742ef1e9c4fa5771e34cefcac3713298bf Reviewed-on: https://chromium-review.googlesource.com/667824 Reviewed-by: Luke Halliwell <halliwell@chromium.org> Commit-Queue: Kenneth MacKay <kmackay@chromium.org> Cr-Commit-Position: refs/heads/master@{#502257}