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

webrtc/common_audio/sparse_fir_filter.cc

Index: webrtc/common_audio/sparse_fir_filter.cc
diff --git a/webrtc/common_audio/sparse_fir_filter.cc b/webrtc/common_audio/sparse_fir_filter.cc
index 28bc013c12fb75b23f2fb9b62d1cb7c9a6ac9b8b..5862b7cc6b7308c18e2001dc9c38949a1b554df4 100644
--- a/webrtc/common_audio/sparse_fir_filter.cc
+++ b/webrtc/common_audio/sparse_fir_filter.cc
@@ -22,8 +22,8 @@ SparseFIRFilter::SparseFIRFilter(const float* nonzero_coeffs,
       offset_(offset),
       nonzero_coeffs_(nonzero_coeffs, nonzero_coeffs + num_nonzero_coeffs),
       state_(sparsity_ * (num_nonzero_coeffs - 1) + offset_, 0.f) {
-  CHECK_GE(num_nonzero_coeffs, 1u);
-  CHECK_GE(sparsity, 1u);
+  RTC_CHECK_GE(num_nonzero_coeffs, 1u);
+  RTC_CHECK_GE(sparsity, 1u);
 }
 
 void SparseFIRFilter::Filter(const float* in, size_t length, float* out) {