Revert "Update includes for webrtc/{base => rtc_base} rename (1/3)"

webrtc/modules/audio_processing/beamformer/complex_matrix.h

 /*
  *  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.
  */
 
 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_COMPLEX_MATRIX_H_
 #define WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_COMPLEX_MATRIX_H_
 
 #include <complex>
 
+#include "webrtc/base/checks.h"
 #include "webrtc/modules/audio_processing/beamformer/matrix.h"
-#include "webrtc/rtc_base/checks.h"
 
 namespace webrtc {
 
 using std::complex;
 
 // An extension of Matrix for operations that only work on a complex type.
 template <typename T>
 class ComplexMatrix : public Matrix<complex<T> > {
  public:
   ComplexMatrix() : Matrix<complex<T> >() {}
@@ skipping 59 matching lines @@
       }
     }
 
     return *this;
   }
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_COMPLEX_MATRIX_H_