Convert //remoting to use std::unique_ptr

remoting/signaling/log_to_server.cc

Index: remoting/signaling/log_to_server.cc
diff --git a/remoting/signaling/log_to_server.cc b/remoting/signaling/log_to_server.cc
index 2da454f0f29daa0511be8e0ceb1d236238650164..0116cce61f555220afcc8c4373d7fad06d68603a 100644
--- a/remoting/signaling/log_to_server.cc
+++ b/remoting/signaling/log_to_server.cc
@@ -59,7 +59,7 @@ void LogToServer::SendPendingEntries() {
     return;
   }
   // Make one stanza containing all the pending entries.
-  scoped_ptr<XmlElement> stanza(ServerLogEntry::MakeStanza());
+  std::unique_ptr<XmlElement> stanza(ServerLogEntry::MakeStanza());
   while (!pending_entries_.empty()) {
     ServerLogEntry& entry = pending_entries_.front();
     stanza->AddElement(entry.ToStanza().release());