Replace scoped_ptr with unique_ptr in webrtc/voice_engine/

webrtc/test/mock_voice_engine.h

Index: webrtc/test/mock_voice_engine.h
diff --git a/webrtc/test/mock_voice_engine.h b/webrtc/test/mock_voice_engine.h
index 28a75f806398645bea70c838b93580675cb35219..887dd35305f574b22ec1bbc93add52eed26ba41d 100644
--- a/webrtc/test/mock_voice_engine.h
+++ b/webrtc/test/mock_voice_engine.h
@@ -11,6 +11,8 @@
 #ifndef WEBRTC_AUDIO_MOCK_VOICE_ENGINE_H_
 #define WEBRTC_AUDIO_MOCK_VOICE_ENGINE_H_
 
+#include <memory>
+
 #include "testing/gmock/include/gmock/gmock.h"
 #include "webrtc/test/mock_voe_channel_proxy.h"
 #include "webrtc/voice_engine/voice_engine_impl.h"
@@ -43,8 +45,8 @@ class MockVoiceEngine : public VoiceEngineImpl {
   MOCK_METHOD1(ChannelProxyFactory, voe::ChannelProxy*(int channel_id));
 
   // VoiceEngineImpl
-  rtc::scoped_ptr<voe::ChannelProxy> GetChannelProxy(int channel_id) override {
-    return rtc::scoped_ptr<voe::ChannelProxy>(ChannelProxyFactory(channel_id));
+  std::unique_ptr<voe::ChannelProxy> GetChannelProxy(int channel_id) override {
+    return std::unique_ptr<voe::ChannelProxy>(ChannelProxyFactory(channel_id));
   }
 
   // VoEAudioProcessing