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

webrtc/common_audio/real_fourier_ooura.cc

 /*
  *  Copyright (c) 2015 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 24 matching lines @@
 }  // namespace
 
 RealFourierOoura::RealFourierOoura(int fft_order)
     : order_(fft_order),
       length_(FftLength(order_)),
       complex_length_(ComplexLength(order_)),
       // Zero-initializing work_ip_ will cause rdft to initialize these work
       // arrays on the first call.
       work_ip_(new size_t[ComputeWorkIpSize(length_)]()),
       work_w_(new float[complex_length_]()) {
-  CHECK_GE(fft_order, 1);
+  RTC_CHECK_GE(fft_order, 1);
 }
 
 void RealFourierOoura::Forward(const float* src, complex<float>* dest) const {
   {
     // This cast is well-defined since C++11. See "Non-static data members" at:
     // http://en.cppreference.com/w/cpp/numeric/complex
     auto dest_float = reinterpret_cast<float*>(dest);
     std::copy(src, src + length_, dest_float);
     WebRtc_rdft(length_, 1, dest_float, work_ip_.get(), work_w_.get());
   }
@@ skipping 20 matching lines @@
   }
 
   WebRtc_rdft(length_, -1, dest, work_ip_.get(), work_w_.get());
 
   // Ooura returns a scaled version.
   const float scale = 2.0f / length_;
   std::for_each(dest, dest + length_, [scale](float& v) { v *= scale; });
 }
 
 }  // namespace webrtc