Replace scoped_ptr with unique_ptr in webrtc/api/

webrtc/api/rtpsenderreceiver_unittest.cc

Index: webrtc/api/rtpsenderreceiver_unittest.cc
diff --git a/webrtc/api/rtpsenderreceiver_unittest.cc b/webrtc/api/rtpsenderreceiver_unittest.cc
index 188264e7b2c4ff2c7b6afb64d26d9a80471fff30..4cd142567ada966f753e33f7e49ff940f8eb4440 100644
--- a/webrtc/api/rtpsenderreceiver_unittest.cc
+++ b/webrtc/api/rtpsenderreceiver_unittest.cc
@@ -8,6 +8,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include <memory>
 #include <string>
 #include <utility>
 
@@ -58,12 +59,12 @@ class MockAudioProvider : public AudioProviderInterface {
                bool(uint32_t ssrc, const RtpParameters&));
 
   void SetRawAudioSink(uint32_t,
-                       rtc::scoped_ptr<AudioSinkInterface> sink) override {
+                       std::unique_ptr<AudioSinkInterface> sink) override {
     sink_ = std::move(sink);
   }
 
  private:
-  rtc::scoped_ptr<AudioSinkInterface> sink_;
+  std::unique_ptr<AudioSinkInterface> sink_;
 };
 
 // Helper class to test RtpSender/RtpReceiver.