Replace scoped_ptr with unique_ptr in webrtc/base/

webrtc/base/opensslstreamadapter.h

Index: webrtc/base/opensslstreamadapter.h
diff --git a/webrtc/base/opensslstreamadapter.h b/webrtc/base/opensslstreamadapter.h
index 463c8f2280b83f74481f3710ef1fa5a6cccca677..1e90bacc0e463c8368a2d017615281bd88a5099a 100644
--- a/webrtc/base/opensslstreamadapter.h
+++ b/webrtc/base/opensslstreamadapter.h
@@ -12,6 +12,7 @@
 #define WEBRTC_BASE_OPENSSLSTREAMADAPTER_H__
 
 #include <string>
+#include <memory>
 #include <vector>
 
 #include "webrtc/base/buffer.h"
@@ -69,7 +70,7 @@ class OpenSSLStreamAdapter : public SSLStreamAdapter {
                                 const unsigned char* digest_val,
                                 size_t digest_len) override;
 
-  rtc::scoped_ptr<SSLCertificate> GetPeerCertificate() const override;
+  std::unique_ptr<SSLCertificate> GetPeerCertificate() const override;
 
   int StartSSLWithServer(const char* server_name) override;
   int StartSSLWithPeer() override;
@@ -184,13 +185,13 @@ class OpenSSLStreamAdapter : public SSLStreamAdapter {
   SSL_CTX* ssl_ctx_;
 
   // Our key and certificate, mostly useful in peer-to-peer mode.
-  scoped_ptr<OpenSSLIdentity> identity_;
+  std::unique_ptr<OpenSSLIdentity> identity_;
   // in traditional mode, the server name that the server's certificate
   // must specify. Empty in peer-to-peer mode.
   std::string ssl_server_name_;
   // The certificate that the peer must present or did present. Initially
   // null in traditional mode, until the connection is established.
-  scoped_ptr<OpenSSLCertificate> peer_certificate_;
+  std::unique_ptr<OpenSSLCertificate> peer_certificate_;
   // In peer-to-peer mode, the digest of the certificate that
   // the peer must present.
   Buffer peer_certificate_digest_value_;