Replace scoped_ptr with unique_ptr in webrtc/modules/audio_device/

webrtc/modules/audio_device/android/audio_track_jni.cc

Index: webrtc/modules/audio_device/android/audio_track_jni.cc
diff --git a/webrtc/modules/audio_device/android/audio_track_jni.cc b/webrtc/modules/audio_device/android/audio_track_jni.cc
index 057e016405c9e4d6e8d6d6fbdddb390d6284b9c8..5bf3a5b8d7d9e576c812a322d6c49fad7be61699 100644
--- a/webrtc/modules/audio_device/android/audio_track_jni.cc
+++ b/webrtc/modules/audio_device/android/audio_track_jni.cc
@@ -31,7 +31,7 @@ namespace webrtc {
 // AudioTrackJni::JavaAudioTrack implementation.
 AudioTrackJni::JavaAudioTrack::JavaAudioTrack(
     NativeRegistration* native_reg,
-    rtc::scoped_ptr<GlobalRef> audio_track)
+    std::unique_ptr<GlobalRef> audio_track)
     : audio_track_(std::move(audio_track)),
       init_playout_(native_reg->GetMethodId("initPlayout", "(II)V")),
       start_playout_(native_reg->GetMethodId("startPlayout", "()Z")),
@@ -69,7 +69,7 @@ int AudioTrackJni::JavaAudioTrack::GetStreamVolume() {
 
 // TODO(henrika): possible extend usage of AudioManager and add it as member.
 AudioTrackJni::AudioTrackJni(AudioManager* audio_manager)
-    : j_environment_(JVM::GetInstance()->environment()),
+    : j_environment_(rtc::ScopedToUnique(JVM::GetInstance()->environment())),
       audio_parameters_(audio_manager->GetPlayoutAudioParameters()),
       direct_buffer_address_(nullptr),
       direct_buffer_capacity_in_bytes_(0),
@@ -86,14 +86,14 @@ AudioTrackJni::AudioTrackJni(AudioManager* audio_manager)
           &webrtc::AudioTrackJni::CacheDirectBufferAddress)},
       {"nativeGetPlayoutData", "(IJ)V",
       reinterpret_cast<void*>(&webrtc::AudioTrackJni::GetPlayoutData)}};
-  j_native_registration_ = j_environment_->RegisterNatives(
+  j_native_registration_ = rtc::ScopedToUnique(j_environment_->RegisterNatives(
       "org/webrtc/voiceengine/WebRtcAudioTrack",
-      native_methods, arraysize(native_methods));
+      native_methods, arraysize(native_methods)));
   j_audio_track_.reset(new JavaAudioTrack(
       j_native_registration_.get(),
-      j_native_registration_->NewObject(
+      rtc::ScopedToUnique(j_native_registration_->NewObject(
           "<init>", "(Landroid/content/Context;J)V",
-          JVM::GetInstance()->context(), PointerTojlong(this))));
+          JVM::GetInstance()->context(), PointerTojlong(this)))));
   // Detach from this thread since we want to use the checker to verify calls
   // from the Java based audio thread.
   thread_checker_java_.DetachFromThread();