Switch CTS to std::unique_ptr.

Bug: http://b/22403888
Change-Id: Ia5eca3b1574b2b87202b876533e01540434e1009
diff --git a/suite/audio_quality/lib/src/SignalProcessingImpl.h b/suite/audio_quality/lib/src/SignalProcessingImpl.h
index 29b410e..2b8b8e0 100644
--- a/suite/audio_quality/lib/src/SignalProcessingImpl.h
+++ b/suite/audio_quality/lib/src/SignalProcessingImpl.h
@@ -17,7 +17,7 @@
 #ifndef CTSAUDIO_SIGNALPROCESSINGIMPL_H
 #define CTSAUDIO_SIGNALPROCESSINGIMPL_H
 
-#include <UniquePtr.h>
+#include <memory>
 #include <utils/String8.h>
 
 #include "SignalProcessingInterface.h"
@@ -46,7 +46,7 @@
 
 private:
     static const int SCRIPT_PORT = 15010;
-    UniquePtr<ClientSocket> mSocket;
+    std::unique_ptr<ClientSocket> mSocket;
     pid_t mChildPid;
     bool mChildRunning;
     RWBuffer mBuffer;