Fixed the clang warning for ApmDataDumper

webrtc/modules/audio_processing/logging/apm_data_dumper.h

 /*
  *  Copyright (c) 2016 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 22 matching lines @@
 // Functor used to use as a custom deleter in the map of file pointers to raw
 // files.
 struct RawFileCloseFunctor {
   void operator()(FILE* f) const { fclose(f); }
 };
 #endif
 
 // Class that handles dumping of variables into files.
 class ApmDataDumper {
  public:
-// Constructor that takes an instance index that may
-// be used to distinguish data dumped from different
-// instances of the code.
-#if WEBRTC_AEC_DEBUG_DUMP == 1
-  explicit ApmDataDumper(int instance_index)
-      : instance_index_(instance_index) {}
-#else
-  explicit ApmDataDumper(int instance_index) {}
-#endif
+  // Constructor that takes an instance index that may
+  // be used to distinguish data dumped from different
+  // instances of the code.
+  explicit ApmDataDumper(int instance_index);
+
+  ~ApmDataDumper();
 
   // Reinitializes the data dumping such that new versions
   // of all files being dumped to are created.
   void InitiateNewSetOfRecordings() {
 #if WEBRTC_AEC_DEBUG_DUMP == 1
     ++recording_set_index_;
 #endif
   }
 
   // Methods for performing dumping of data of various types into
@@ skipping 83 matching lines @@
 
   FILE* GetRawFile(const char* name);
   WavWriter* GetWavFile(const char* name, int sample_rate_hz, int num_channels);
 #endif
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(ApmDataDumper);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_LOGGING_APM_DATA_DUMPER_H_