Replace scoped_ptr with unique_ptr in webrtc/voice_engine/

webrtc/voice_engine/test/cmd_test/voe_cmd_test.cc

Index: webrtc/voice_engine/test/cmd_test/voe_cmd_test.cc
diff --git a/webrtc/voice_engine/test/cmd_test/voe_cmd_test.cc b/webrtc/voice_engine/test/cmd_test/voe_cmd_test.cc
index ccfe3c2bdebe04296161430fa847bf5d1ce13698..bfc8b6537e47f505862f3b258cd2a1a1a1a965fb 100644
--- a/webrtc/voice_engine/test/cmd_test/voe_cmd_test.cc
+++ b/webrtc/voice_engine/test/cmd_test/voe_cmd_test.cc
@@ -15,12 +15,12 @@
 #include <unistd.h>
 #endif
 
+#include <memory>
 #include <vector>
 
 #include "gflags/gflags.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webrtc/base/format_macros.h"
-#include "webrtc/base/scoped_ptr.h"
 #include "webrtc/call/rtc_event_log.h"
 #include "webrtc/engine_configurations.h"
 #include "webrtc/modules/audio_processing/include/audio_processing.h"
@@ -142,7 +142,7 @@ int main(int argc, char** argv) {
 
   MyObserver my_observer;
 
-  rtc::scoped_ptr<test::TraceToStderr> trace_to_stderr;
+  std::unique_ptr<test::TraceToStderr> trace_to_stderr;
   if (!FLAGS_use_log_file) {
     trace_to_stderr.reset(new test::TraceToStderr);
   } else {