Adding stats that can be used to compute output audio levels.

webrtc/test/mock_voe_channel_proxy.h

Index: webrtc/test/mock_voe_channel_proxy.h
diff --git a/webrtc/test/mock_voe_channel_proxy.h b/webrtc/test/mock_voe_channel_proxy.h
index bd6bb4c0d8c7f0ef3f9a3004b0e283502f1e13f8..6aa60857d1041ef17ce1f8ceb3411cfa17d27f61 100644
--- a/webrtc/test/mock_voe_channel_proxy.h
+++ b/webrtc/test/mock_voe_channel_proxy.h
@@ -54,6 +54,8 @@ class MockVoEChannelProxy : public voe::ChannelProxy {
   MOCK_CONST_METHOD0(GetDecodingCallStatistics, AudioDecodingCallStats());
   MOCK_CONST_METHOD0(GetSpeechOutputLevel, int());
   MOCK_CONST_METHOD0(GetSpeechOutputLevelFullRange, int());
+  MOCK_CONST_METHOD0(GetTotalOutputEnergy, double());
+  MOCK_CONST_METHOD0(GetTotalOutputDuration, double());
   MOCK_CONST_METHOD0(GetDelayEstimate, uint32_t());
   MOCK_METHOD2(SetSendTelephoneEventPayloadType, bool(int payload_type,
                                                       int payload_frequency));