Add RTC_ prefix to (D)CHECKs and related macros.

webrtc/modules/audio_coding/neteq/audio_decoder_unittest.cc

Index: webrtc/modules/audio_coding/neteq/audio_decoder_unittest.cc
diff --git a/webrtc/modules/audio_coding/neteq/audio_decoder_unittest.cc b/webrtc/modules/audio_coding/neteq/audio_decoder_unittest.cc
index b476d7e31ec64e8a0dd2180865e81cd0d4b64ca0..4b40dfd626bc48ce43af861aa3b795e6c075d05a 100644
--- a/webrtc/modules/audio_coding/neteq/audio_decoder_unittest.cc
+++ b/webrtc/modules/audio_coding/neteq/audio_decoder_unittest.cc
@@ -140,8 +140,8 @@ class AudioDecoderTest : public ::testing::Test {
                           uint8_t* output) {
     encoded_info_.encoded_bytes = 0;
     const size_t samples_per_10ms = audio_encoder_->SampleRateHz() / 100;
-    CHECK_EQ(samples_per_10ms * audio_encoder_->Num10MsFramesInNextPacket(),
-             input_len_samples);
+    RTC_CHECK_EQ(samples_per_10ms * audio_encoder_->Num10MsFramesInNextPacket(),
+                 input_len_samples);
     rtc::scoped_ptr<int16_t[]> interleaved_input(
         new int16_t[channels_ * samples_per_10ms]);
     for (size_t i = 0; i < audio_encoder_->Num10MsFramesInNextPacket(); ++i) {