PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN   58 ppapi/cpp/audio_buffer.cc   return PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN;
PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN   59 ppapi/proxy/audio_buffer_resource.cc     return PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN;
PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN  132 ppapi/tests/test_media_stream_audio_track.cc     ASSERT_EQ(buffer.GetSampleSize(), PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN);
PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN   53 ppapi/thunk/ppb_audio_buffer_thunk.cc     return PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN;