Added 24k sample rate support and removed the validation check in webrtc

media/audio/sample_rates.h

Index: media/audio/sample_rates.h
diff --git a/media/audio/sample_rates.h b/media/audio/sample_rates.h
index 482ec0fdc8b2fcbbe25d3b46e58058fd25ca2a7d..ad0d44dde565b616e4076d99c068d9aff816d7f7 100644
--- a/media/audio/sample_rates.h
+++ b/media/audio/sample_rates.h
@@ -23,6 +23,7 @@ enum AudioSampleRate {
   k88200Hz = 8,
   k176400Hz = 9,
   k192000Hz = 10,
+  k24000Hz = 11,
   // Must always equal the largest value ever reported:
   kAudioSampleRateMax = k192000Hz,

[DaleCurtis, 2014/09/05 17:27:45]

You need to change this.

[tommi (sloooow) - chröme, 2014/09/05 19:17:20]

I think k192000Hz is still the highest value.  The 24000 value is just out of
order now :-/

[DaleCurtis, 2014/09/05 19:19:55]

It still needs to be changed otherwise the UMA reporting won't bucket correctly.
 I don't think anything uses this value as the actual max sample rate.  |value|
in this case refers to the assigned enum value.

[tommi (sloooow) - chröme, 2014/09/05 20:08:46]

Ah of course. This is easy to misread :)

 };