Replace scoped_ptr with unique_ptr in webrtc/base/

webrtc/base/asynctcpsocket.cc

Index: webrtc/base/asynctcpsocket.cc
diff --git a/webrtc/base/asynctcpsocket.cc b/webrtc/base/asynctcpsocket.cc
index 65ec0f287bbe8f53333bdd33a3cf7cb96bbad610..120bcfbb64cddb7577d1200d6932b95ea7dbfba5 100644
--- a/webrtc/base/asynctcpsocket.cc
+++ b/webrtc/base/asynctcpsocket.cc
@@ -13,6 +13,7 @@
 #include <string.h>
 
 #include <algorithm>
+#include <memory>
 
 #include "webrtc/base/byteorder.h"
 #include "webrtc/base/checks.h"
@@ -44,7 +45,7 @@ AsyncSocket* AsyncTCPSocketBase::ConnectSocket(
     rtc::AsyncSocket* socket,
     const rtc::SocketAddress& bind_address,
     const rtc::SocketAddress& remote_address) {
-  rtc::scoped_ptr<rtc::AsyncSocket> owned_socket(socket);
+  std::unique_ptr<rtc::AsyncSocket> owned_socket(socket);
   if (socket->Bind(bind_address) < 0) {
     LOG(LS_ERROR) << "Bind() failed with error " << socket->GetError();
     return NULL;