Replace NULL with nullptr in all C++ files.

webrtc/modules/audio_coding/neteq/delay_manager.cc

 /*
  *  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 26 matching lines @@
       streaming_mode_(false),
       last_seq_no_(0),
       last_timestamp_(0),
       minimum_delay_ms_(0),
       least_required_delay_ms_(target_level_),
       maximum_delay_ms_(target_level_),
       iat_cumulative_sum_(0),
       max_iat_cumulative_sum_(0),
       peak_detector_(*peak_detector),
       last_pack_cng_or_dtmf_(1) {
-  assert(peak_detector);  // Should never be NULL.
+  assert(peak_detector);  // Should never be nullptr.
   Reset();
 }
 
 DelayManager::~DelayManager() {}
 
 const DelayManager::IATVector& DelayManager::iat_vector() const {
   return iat_vector_;
 }
 
 // Set the histogram vector to an exponentially decaying distribution
@@ skipping 280 matching lines @@
 
 void DelayManager::ResetPacketIatCount() {
   packet_iat_stopwatch_ = tick_timer_->GetNewStopwatch();
 }
 
 // Note that |low_limit| and |higher_limit| are not assigned to
 // |minimum_delay_ms_| and |maximum_delay_ms_| defined by the client of this
 // class. They are computed from |target_level_| and used for decision making.
 void DelayManager::BufferLimits(int* lower_limit, int* higher_limit) const {
   if (!lower_limit || !higher_limit) {
-    LOG_F(LS_ERROR) << "NULL pointers supplied as input";
+    LOG_F(LS_ERROR) << "null pointers supplied as input";
     assert(false);
     return;
   }
 
   int window_20ms = 0x7FFF;  // Default large value for legacy bit-exactness.
   if (packet_len_ms_ > 0) {
     window_20ms = (20 << 8) / packet_len_ms_;
   }
 
   // |target_level_| is in Q8 already.
@@ skipping 49 matching lines @@
 int DelayManager::base_target_level() const { return base_target_level_; }
 void DelayManager::set_streaming_mode(bool value) { streaming_mode_ = value; }
 int DelayManager::last_pack_cng_or_dtmf() const {
   return last_pack_cng_or_dtmf_;
 }
 
 void DelayManager::set_last_pack_cng_or_dtmf(int value) {
   last_pack_cng_or_dtmf_ = value;
 }
 }  // namespace webrtc