Replace scoped_ptr with unique_ptr in webrtc/base/

webrtc/p2p/base/faketransportcontroller.h

Index: webrtc/p2p/base/faketransportcontroller.h
diff --git a/webrtc/p2p/base/faketransportcontroller.h b/webrtc/p2p/base/faketransportcontroller.h
index 394e6dd1540a921501fbf8d81dd0d1fd6d2103ab..c099c8cb796e1f132578a39631fe87670b3d434c 100644
--- a/webrtc/p2p/base/faketransportcontroller.h
+++ b/webrtc/p2p/base/faketransportcontroller.h
@@ -12,6 +12,7 @@
 #define WEBRTC_P2P_BASE_FAKETRANSPORTCONTROLLER_H_
 
 #include <map>
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -260,9 +261,9 @@ class FakeTransportChannel : public TransportChannelImpl,
     return local_cert_;
   }
 
-  rtc::scoped_ptr<rtc::SSLCertificate> GetRemoteSSLCertificate()
+  std::unique_ptr<rtc::SSLCertificate> GetRemoteSSLCertificate()
       const override {
-    return remote_cert_ ? rtc::scoped_ptr<rtc::SSLCertificate>(
+    return remote_cert_ ? std::unique_ptr<rtc::SSLCertificate>(
                               remote_cert_->GetReference())
                         : nullptr;
   }