kwiberg 347d35129e AudioDecoder: Remove the default implementation of SampleRateHz
And implement SampleRateHz in a bunch of mocks.

BUG=webrtc:5801
NOTRY=true

Review-Url: https://codereview.webrtc.org/2029543002
Cr-Commit-Position: refs/heads/master@{#13161}
2016-06-16 08:59:13 +00:00
..
2016-06-15 12:54:20 +00:00