Replace NULL with nullptr in all C++ files.

webrtc/modules/audio_coding/neteq/neteq_unittest.cc

 /*
  *  Copyright (c) 2011 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 154 matching lines @@
  private:
   FILE* output_fp_;
   std::unique_ptr<rtc::MessageDigest> digest_;
 };
 
 ResultSink::ResultSink(const std::string &output_file)
     : output_fp_(nullptr),
       digest_(new rtc::Sha1Digest()) {
   if (!output_file.empty()) {
     output_fp_ = fopen(output_file.c_str(), "wb");
-    EXPECT_TRUE(output_fp_ != NULL);
+    EXPECT_TRUE(output_fp_ != nullptr);
   }
 }
 
 ResultSink::~ResultSink() {
   if (output_fp_)
     fclose(output_fp_);
 }
 
 template<typename T, size_t n>
 void ResultSink::AddResult(const T (&test_results)[n], size_t length) {
@@ skipping 95 matching lines @@
 };
 
 // Allocating the static const so that it can be passed by reference.
 const int NetEqDecodingTest::kTimeStepMs;
 const size_t NetEqDecodingTest::kBlockSize8kHz;
 const size_t NetEqDecodingTest::kBlockSize16kHz;
 const size_t NetEqDecodingTest::kBlockSize32kHz;
 const int NetEqDecodingTest::kInitSampleRateHz;
 
 NetEqDecodingTest::NetEqDecodingTest()
-    : neteq_(NULL),
+    : neteq_(nullptr),
       config_(),
       sim_clock_(0),
       output_sample_rate_(kInitSampleRateHz),
       algorithmic_delay_ms_(0) {
   config_.sample_rate_hz = kInitSampleRateHz;
 }
 
 void NetEqDecodingTest::SetUp() {
   neteq_ = NetEq::Create(config_, CreateBuiltinAudioDecoderFactory());
   NetEqNetworkStatistics stat;
@@ skipping 1279 matching lines @@
     if (muted) {
       EXPECT_TRUE(AudioFramesEqualExceptData(out_frame1, out_frame2));
     } else {
       EXPECT_TRUE(AudioFramesEqual(out_frame1, out_frame2));
     }
   }
   EXPECT_FALSE(muted);
 }
 
 }  // namespace webrtc