Replace scoped_ptr with unique_ptr in webrtc/modules/audio_device/

webrtc/modules/audio_device/test/audio_device_test_api.cc

Index: webrtc/modules/audio_device/test/audio_device_test_api.cc
diff --git a/webrtc/modules/audio_device/test/audio_device_test_api.cc b/webrtc/modules/audio_device/test/audio_device_test_api.cc
index f2861ec3e55ec7a273e2ef0e9b6f48cb28810d6e..a564e355845e3b231a54b10a5e2d0751ca92779c 100644
--- a/webrtc/modules/audio_device/test/audio_device_test_api.cc
+++ b/webrtc/modules/audio_device/test/audio_device_test_api.cc
@@ -12,6 +12,8 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <memory>
+
 #include "webrtc/modules/audio_device/test/audio_device_test_defines.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
@@ -140,7 +142,8 @@ class AudioDeviceAPITest: public testing::Test {
   virtual ~AudioDeviceAPITest() {}
 
   static void SetUpTestCase() {
-    process_thread_ = ProcessThread::Create("ProcessThread");
+    process_thread_ =
+        rtc::ScopedToUnique(ProcessThread::Create("ProcessThread"));
     process_thread_->Start();
 
     // Windows:
@@ -300,7 +303,7 @@ class AudioDeviceAPITest: public testing::Test {
 
   // TODO(henrika): Get rid of globals.
   static bool linux_alsa_;
-  static rtc::scoped_ptr<ProcessThread> process_thread_;
+  static std::unique_ptr<ProcessThread> process_thread_;
   static AudioDeviceModule* audio_device_;
   static AudioTransportAPI* audio_transport_;
   static AudioEventObserverAPI* event_observer_;
@@ -308,7 +311,7 @@ class AudioDeviceAPITest: public testing::Test {
 
 // Must be initialized like this to handle static SetUpTestCase() above.
 bool AudioDeviceAPITest::linux_alsa_ = false;
-rtc::scoped_ptr<ProcessThread> AudioDeviceAPITest::process_thread_;
+std::unique_ptr<ProcessThread> AudioDeviceAPITest::process_thread_;
 AudioDeviceModule* AudioDeviceAPITest::audio_device_ = NULL;
 AudioTransportAPI* AudioDeviceAPITest::audio_transport_ = NULL;
 AudioEventObserverAPI* AudioDeviceAPITest::event_observer_ = NULL;