Replace NULL with nullptr in all C++ files.

webrtc/modules/audio_processing/transient/transient_suppressor.cc

 /*
  *  Copyright (c) 2013 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 33 matching lines @@
 
 }  // namespace
 
 TransientSuppressor::TransientSuppressor()
     : data_length_(0),
       detection_length_(0),
       analysis_length_(0),
       buffer_delay_(0),
       complex_analysis_length_(0),
       num_channels_(0),
-      window_(NULL),
+      window_(nullptr),
       detector_smoothed_(0.f),
       keypress_counter_(0),
       chunks_since_keypress_(0),
       detection_enabled_(false),
       suppression_enabled_(false),
       use_hard_restoration_(false),
       chunks_since_voice_change_(0),
       seed_(182),
-      using_reference_(false) {
-}
+      using_reference_(false) {}
 
 TransientSuppressor::~TransientSuppressor() {}
 
 int TransientSuppressor::Initialize(int sample_rate_hz,
                                     int detection_rate_hz,
                                     int num_channels) {
   switch (sample_rate_hz) {
     case ts::kSampleRate8kHz:
       analysis_length_ = 128u;
       window_ = kBlocks80w128;
@@ skipping 340 matching lines @@
       const float magnitude_ratio = new_magnitude / magnitudes_[i];
 
       fft_buffer_[i * 2] *= magnitude_ratio;
       fft_buffer_[i * 2 + 1] *= magnitude_ratio;
       magnitudes_[i] = new_magnitude;
     }
   }
 }
 
 }  // namespace webrtc