Replace scoped_ptr with unique_ptr in webrtc/libjingle/

webrtc/libjingle/xmpp/xmpplogintask_unittest.cc

Index: webrtc/libjingle/xmpp/xmpplogintask_unittest.cc
diff --git a/webrtc/libjingle/xmpp/xmpplogintask_unittest.cc b/webrtc/libjingle/xmpp/xmpplogintask_unittest.cc
index 221cbdeaf5eb845f35585c8dba2a9b8353120fbb..f3060bd5592f870d263f485dd4f349017353e3f1 100644
--- a/webrtc/libjingle/xmpp/xmpplogintask_unittest.cc
+++ b/webrtc/libjingle/xmpp/xmpplogintask_unittest.cc
@@ -9,8 +9,10 @@
  */
 
 #include <iostream>
+#include <memory>
 #include <sstream>
 #include <string>
+
 #include "webrtc/libjingle/xmllite/xmlelement.h"
 #include "webrtc/libjingle/xmpp/constants.h"
 #include "webrtc/libjingle/xmpp/plainsaslhandler.h"
@@ -67,8 +69,8 @@ class XmppLoginTaskTest : public testing::Test {
   void SetTlsOptions(buzz::TlsOptions option);
 
  private:
-  rtc::scoped_ptr<XmppEngine> engine_;
-  rtc::scoped_ptr<XmppTestHandler> handler_;
+  std::unique_ptr<XmppEngine> engine_;
+  std::unique_ptr<XmppTestHandler> handler_;
 };
 
 void XmppLoginTaskTest::SetTlsOptions(buzz::TlsOptions option) {