NetEq: Convert AverageIAT from int to float calculations

webrtc/modules/audio_coding/neteq/mock/mock_delay_manager.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 17 matching lines @@
   MOCK_CONST_METHOD0(iat_vector,
       const IATVector&());
   MOCK_METHOD3(Update,
       int(uint16_t sequence_number, uint32_t timestamp, int sample_rate_hz));
   MOCK_METHOD1(CalculateTargetLevel,
       int(int iat_packets));
   MOCK_METHOD1(SetPacketAudioLength,
       int(int length_ms));
   MOCK_METHOD0(Reset,
       void());
-  MOCK_CONST_METHOD0(AverageIAT,
-      int());
   MOCK_CONST_METHOD0(PeakFound,
       bool());
   MOCK_METHOD1(UpdateCounters,
       void(int elapsed_time_ms));
   MOCK_METHOD0(ResetPacketIatCount,
       void());
   MOCK_CONST_METHOD2(BufferLimits,
       void(int* lower_limit, int* higher_limit));
   MOCK_CONST_METHOD0(TargetLevel,
       int());
   MOCK_METHOD1(set_extra_delay_ms,
       void(int16_t delay));
   MOCK_CONST_METHOD0(base_target_level,
       int());
   MOCK_METHOD1(set_streaming_mode,
       void(bool value));
   MOCK_CONST_METHOD0(last_pack_cng_or_dtmf,
       int());
   MOCK_METHOD1(set_last_pack_cng_or_dtmf,
       void(int value));
 };
 
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_AUDIO_CODING_NETEQ_MOCK_MOCK_DELAY_MANAGER_H_