Fix Chromium clang plugin warnings

webrtc/common_audio/channel_buffer.h

 /*
  *  Copyright (c) 2014 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 135 matching lines @@
 
 // One int16_t and one float ChannelBuffer that are kept in sync. The sync is
 // broken when someone requests write access to either ChannelBuffer, and
 // reestablished when someone requests the outdated ChannelBuffer. It is
 // therefore safe to use the return value of ibuf_const() and fbuf_const()
 // until the next call to ibuf() or fbuf(), and the return value of ibuf() and
 // fbuf() until the next call to any of the other functions.
 class IFChannelBuffer {
  public:
   IFChannelBuffer(size_t num_frames, size_t num_channels, size_t num_bands = 1);
+  ~IFChannelBuffer();
 
   ChannelBuffer<int16_t>* ibuf();
   ChannelBuffer<float>* fbuf();
   const ChannelBuffer<int16_t>* ibuf_const() const;
   const ChannelBuffer<float>* fbuf_const() const;
 
   size_t num_frames() const { return ibuf_.num_frames(); }
   size_t num_frames_per_band() const { return ibuf_.num_frames_per_band(); }
   size_t num_channels() const {
     return ivalid_ ? ibuf_.num_channels() : fbuf_.num_channels();
@@ skipping 10 matching lines @@
 
   mutable bool ivalid_;
   mutable ChannelBuffer<int16_t> ibuf_;
   mutable bool fvalid_;
   mutable ChannelBuffer<float> fbuf_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_CHANNEL_BUFFER_H_