Re-write many calls to WrapUnique() with MakeUnique()

media/audio/fake_audio_input_stream.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/audio/fake_audio_input_stream.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 109 matching lines @@
                                  << switches::kUseFileForFakeAudioCapture
                                  << ".";
     base::FilePath path_to_wav_file = base::FilePath(parameters[0]);
     bool looping = true;
     if (parameters.size() == 2) {
       CHECK(parameters[1] == FILE_PATH_LITERAL("noloop"))
           << "Unknown parameter " << parameters[1] << " to "
           << switches::kUseFileForFakeAudioCapture << ".";
       looping = false;
     }
-    return base::WrapUnique(new FileSource(params_, path_to_wav_file, looping));
+    return base::MakeUnique<FileSource>(params_, path_to_wav_file, looping);
   }
-  return base::WrapUnique(new BeepingSource(params_));
+  return base::MakeUnique<BeepingSource>(params_);
 }
 
 void FakeAudioInputStream::BeepOnce() {
   BeepingSource::BeepOnce();
 }
 
 }  // namespace media