Change return type of AudioEncoder::SetMaxPlaybackRate to void

webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h

Index: webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h
diff --git a/webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h b/webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h
index 41c7e58461e661f843baf1391685d08c45076385..a34edb3150ba197dc419ddb81c403e10a71d121a 100644
--- a/webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h
+++ b/webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h
@@ -38,7 +38,7 @@ class MockAudioEncoder final : public AudioEncoder {
   MOCK_METHOD1(SetFec, bool(bool enable));
   MOCK_METHOD1(SetDtx, bool(bool enable));
   MOCK_METHOD1(SetApplication, bool(Application application));
-  MOCK_METHOD1(SetMaxPlaybackRate, bool(int frequency_hz));
+  MOCK_METHOD1(SetMaxPlaybackRate, void(int frequency_hz));
   MOCK_METHOD1(SetProjectedPacketLossRate, void(double fraction));
   MOCK_METHOD1(SetTargetBitrate, void(int target_bps));
   MOCK_METHOD1(SetMaxBitrate, void(int max_bps));