Replace NULL with nullptr in all C++ files.

webrtc/modules/audio_coding/codecs/opus/opus_fec_test.cc

 /*
  *  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 57 matching lines @@
 };
 
 void OpusFecTest::SetUp() {
   channels_ = get<0>(GetParam());
   bit_rate_ = get<1>(GetParam());
   printf("Coding %" PRIuS " channel signal at %d bps.\n", channels_, bit_rate_);
 
   in_filename_ = test::ResourcePath(get<2>(GetParam()), get<3>(GetParam()));
 
   FILE* fp = fopen(in_filename_.c_str(), "rb");
-  ASSERT_FALSE(fp == NULL);
+  ASSERT_FALSE(fp == nullptr);
 
   // Obtain file size.
   fseek(fp, 0, SEEK_END);
   loop_length_samples_ = ftell(fp) / sizeof(int16_t);
   rewind(fp);
 
   // Allocate memory to contain the whole file.
   in_data_.reset(new int16_t[loop_length_samples_ +
       block_length_sample_ * channels_]);
 
@@ skipping 33 matching lines @@
 }
 
 OpusFecTest::OpusFecTest()
     : block_duration_ms_(kOpusBlockDurationMs),
       sampling_khz_(kOpusSamplingKhz),
       block_length_sample_(
           static_cast<size_t>(block_duration_ms_ * sampling_khz_)),
       data_pointer_(0),
       max_bytes_(0),
       encoded_bytes_(0),
-      opus_encoder_(NULL),
-      opus_decoder_(NULL) {
-}
+      opus_encoder_(nullptr),
+      opus_decoder_(nullptr) {}
 
 void OpusFecTest::EncodeABlock() {
   int value = WebRtcOpus_Encode(opus_encoder_,
                                 &in_data_[data_pointer_],
                                 block_length_sample_,
                                 max_bytes_, &bit_stream_[0]);
   EXPECT_GT(value, 0);
 
   encoded_bytes_ = static_cast<size_t>(value);
 }
@@ skipping 88 matching lines @@
      ::std::tr1::make_tuple(1, 32000, string("audio_coding/testfile32kHz"),
                             string("pcm")),
      ::std::tr1::make_tuple(2, 64000, string("audio_coding/teststereo32kHz"),
                             string("pcm"))};
 
 // 64 kbps, stereo
 INSTANTIATE_TEST_CASE_P(AllTest, OpusFecTest,
                         ::testing::ValuesIn(param_set));
 
 }  // namespace webrtc