[NOT FOR REVIEW] Convert channel counts to size_t.

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/base/scoped_ptr.h"
 #include "webrtc/modules/audio_processing/beamformer/matrix.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> >() {}
 
-  ComplexMatrix(int num_rows, int num_columns)
+  ComplexMatrix(size_t num_rows, size_t num_columns)
       : Matrix<complex<T> >(num_rows, num_columns) {}
 
-  ComplexMatrix(const complex<T>* data, int num_rows, int num_columns)
+  ComplexMatrix(const complex<T>* data, size_t num_rows, size_t num_columns)
       : Matrix<complex<T> >(data, num_rows, num_columns) {}
 
   // Complex Matrix operations.
   ComplexMatrix& PointwiseConjugate() {
     complex<T>* const data = this->data();
     size_t size = this->num_rows() * this->num_columns();
     for (size_t i = 0; i < size; ++i) {
       data[i] = conj(data[i]);
     }
 
     return *this;
   }
 
   ComplexMatrix& PointwiseConjugate(const ComplexMatrix& operand) {
     this->CopyFrom(operand);
     return PointwiseConjugate();
   }
 
   ComplexMatrix& ConjugateTranspose() {
     this->CopyDataToScratch();
-    int num_rows = this->num_rows();
+    size_t num_rows = this->num_rows();
     this->SetNumRows(this->num_columns());
     this->SetNumColumns(num_rows);
     this->Resize();
     return ConjugateTranspose(this->scratch_elements());
   }
 
   ComplexMatrix& ConjugateTranspose(const ComplexMatrix& operand) {
     CHECK_EQ(operand.num_rows(), this->num_columns());
     CHECK_EQ(operand.num_columns(), this->num_rows());
     return ConjugateTranspose(operand.elements());
@@ skipping 10 matching lines @@
   }
 
   ComplexMatrix& ZeroImag(const ComplexMatrix& operand) {
     this->CopyFrom(operand);
     return ZeroImag();
   }
 
  private:
   ComplexMatrix& ConjugateTranspose(const complex<T>* const* src) {
     complex<T>* const* elements = this->elements();
-    for (int i = 0; i < this->num_rows(); ++i) {
-      for (int j = 0; j < this->num_columns(); ++j) {
+    for (size_t i = 0; i < this->num_rows(); ++i) {
+      for (size_t j = 0; j < this->num_columns(); ++j) {
         elements[i][j] = conj(src[j][i]);
       }
     }
 
     return *this;
   }
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_COMPLEX_MATRIX_H_