Replace scoped_ptr with unique_ptr in webrtc/modules/audio_processing/

BUG=webrtc:5520

Review URL: https://codereview.webrtc.org/1710483002

Cr-Commit-Position: refs/heads/master@{#11684}
diff --git a/webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer.h b/webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer.h
index 9cb03ca..2deb4d2 100644
--- a/webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer.h
+++ b/webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer.h
@@ -12,9 +12,9 @@
 #define WEBRTC_MODULES_AUDIO_PROCESSING_INTELLIGIBILITY_INTELLIGIBILITY_ENHANCER_H_
 
 #include <complex>
+#include <memory>
 #include <vector>
 
-#include "webrtc/base/scoped_ptr.h"
 #include "webrtc/common_audio/lapped_transform.h"
 #include "webrtc/common_audio/channel_buffer.h"
 #include "webrtc/modules/audio_processing/intelligibility/intelligibility_utils.h"
@@ -120,24 +120,24 @@
 
   intelligibility::PowerEstimator clear_power_;
   std::vector<float> noise_power_;
-  rtc::scoped_ptr<float[]> filtered_clear_pow_;
-  rtc::scoped_ptr<float[]> filtered_noise_pow_;
-  rtc::scoped_ptr<float[]> center_freqs_;
+  std::unique_ptr<float[]> filtered_clear_pow_;
+  std::unique_ptr<float[]> filtered_noise_pow_;
+  std::unique_ptr<float[]> center_freqs_;
   std::vector<std::vector<float>> capture_filter_bank_;
   std::vector<std::vector<float>> render_filter_bank_;
   size_t start_freq_;
-  rtc::scoped_ptr<float[]> rho_;  // Production and interpretation SNR.
+  std::unique_ptr<float[]> rho_;  // Production and interpretation SNR.
                                   // for each ERB band.
-  rtc::scoped_ptr<float[]> gains_eq_;  // Pre-filter modified gains.
+  std::unique_ptr<float[]> gains_eq_;  // Pre-filter modified gains.
   intelligibility::GainApplier gain_applier_;
 
   // Destination buffers used to reassemble blocked chunks before overwriting
   // the original input array with modifications.
   ChannelBuffer<float> temp_render_out_buffer_;
 
-  rtc::scoped_ptr<float[]> kbd_window_;
+  std::unique_ptr<float[]> kbd_window_;
   TransformCallback render_callback_;
-  rtc::scoped_ptr<LappedTransform> render_mangler_;
+  std::unique_ptr<LappedTransform> render_mangler_;
   int block_count_;
   int analysis_step_;
 };
diff --git a/webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer_unittest.cc b/webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer_unittest.cc
index 0d15406..b0f94ec 100644
--- a/webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer_unittest.cc
+++ b/webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer_unittest.cc
@@ -10,12 +10,13 @@
 
 #include <math.h>
 #include <stdlib.h>
+
 #include <algorithm>
+#include <memory>
 #include <vector>
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webrtc/base/arraysize.h"
-#include "webrtc/base/scoped_ptr.h"
 #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
 #include "webrtc/modules/audio_processing/intelligibility/intelligibility_enhancer.h"
 
@@ -105,7 +106,7 @@
   }
 
   IntelligibilityEnhancer::Config config_;
-  rtc::scoped_ptr<IntelligibilityEnhancer> enh_;
+  std::unique_ptr<IntelligibilityEnhancer> enh_;
   std::vector<float> clear_data_;
   std::vector<float> noise_data_;
   std::vector<float> orig_data_;
diff --git a/webrtc/modules/audio_processing/intelligibility/intelligibility_utils.h b/webrtc/modules/audio_processing/intelligibility/intelligibility_utils.h
index 2bf0791..8858cff 100644
--- a/webrtc/modules/audio_processing/intelligibility/intelligibility_utils.h
+++ b/webrtc/modules/audio_processing/intelligibility/intelligibility_utils.h
@@ -12,8 +12,7 @@
 #define WEBRTC_MODULES_AUDIO_PROCESSING_INTELLIGIBILITY_INTELLIGIBILITY_UTILS_H_
 
 #include <complex>
-
-#include "webrtc/base/scoped_ptr.h"
+#include <memory>
 
 namespace webrtc {
 
@@ -36,13 +35,13 @@
 
  private:
   // TODO(ekmeyerson): Switch the following running means
-  // and histories from rtc::scoped_ptr to std::vector.
-  rtc::scoped_ptr<std::complex<float>[]> running_mean_sq_;
+  // and histories from std::unique_ptr to std::vector.
+  std::unique_ptr<std::complex<float>[]> running_mean_sq_;
 
   // The current magnitude array.
-  rtc::scoped_ptr<float[]> magnitude_;
+  std::unique_ptr<float[]> magnitude_;
   // The current power array.
-  rtc::scoped_ptr<float[]> power_;
+  std::unique_ptr<float[]> power_;
 
   const size_t num_freqs_;
   const float decay_;
@@ -66,8 +65,8 @@
  private:
   const size_t num_freqs_;
   const float change_limit_;
-  rtc::scoped_ptr<float[]> target_;
-  rtc::scoped_ptr<float[]> current_;
+  std::unique_ptr<float[]> target_;
+  std::unique_ptr<float[]> current_;
 };
 
 }  // namespace intelligibility