Replace scoped_ptr with unique_ptr in webrtc/modules/audio_processing/

webrtc/modules/audio_processing/agc/histogram_unittest.cc

 /*
  *  Copyright (c) 2012 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.
  */
 
 // Use CreateHistUnittestFile.m to generate the input file.
 
 #include "webrtc/modules/audio_processing/agc/histogram.h"
 
 #include <stdio.h>
 #include <cmath>
+#include <memory>
 
 #include "gtest/gtest.h"
 #include "webrtc/test/testsupport/fileutils.h"
 #include "webrtc/modules/audio_processing/agc/utility.h"
 
 namespace webrtc {
 
 struct InputOutput {
   double rms;
   double activity_probability;
   double audio_content;
   double loudness;
 };
 
 const double kRelativeErrTol = 1e-10;
 
 class HistogramTest : public ::testing::Test {
  protected:
   void RunTest(bool enable_circular_buff,
                const char* filename);
 
  private:
   void TestClean();
-  rtc::scoped_ptr<Histogram> hist_;
+  std::unique_ptr<Histogram> hist_;
 };
 
 void HistogramTest::TestClean() {
   EXPECT_EQ(hist_->CurrentRms(), 7.59621091765857e-02);
   EXPECT_EQ(hist_->AudioContent(), 0);
   EXPECT_EQ(hist_->num_updates(), 0);
 }
 
 void HistogramTest::RunTest(bool enable_circular_buff, const char* filename) {
   FILE* in_file = fopen(filename, "rb");
@@ skipping 44 matching lines @@
                              "dat").c_str());
 }
 
 TEST_F(HistogramTest, InactiveCircularBuffer) {
   RunTest(false,
           test::ResourcePath("audio_processing/agc/agc_no_circular_buffer",
                              "dat").c_str());
 }
 
 }  // namespace webrtc