Use the appropriate variant of IntToString in //remoting

remoting/protocol/jingle_messages.cc

Index: remoting/protocol/jingle_messages.cc
diff --git a/remoting/protocol/jingle_messages.cc b/remoting/protocol/jingle_messages.cc
index 85c655eab451ee16cf9b52e2903b8c30e287c425..9896b2758e828d7871e18283cfa3de5a088685d8 100644
--- a/remoting/protocol/jingle_messages.cc
+++ b/remoting/protocol/jingle_messages.cc
@@ -158,14 +158,14 @@ XmlElement* FormatIceCandidate(const JingleMessage::NamedCandidate& candidate) {
   result->SetAttr(QName(kEmptyNamespace, "address"),
                   candidate.candidate.address().ipaddr().ToString());
   result->SetAttr(QName(kEmptyNamespace, "port"),
-                  base::IntToString(candidate.candidate.address().port()));
+                  base::UintToString(candidate.candidate.address().port()));
   result->SetAttr(QName(kEmptyNamespace, "type"), candidate.candidate.type());
   result->SetAttr(QName(kEmptyNamespace, "protocol"),
                   candidate.candidate.protocol());
   result->SetAttr(QName(kEmptyNamespace, "priority"),
-                  base::DoubleToString(candidate.candidate.priority()));
+                  base::UintToString(candidate.candidate.priority()));
   result->SetAttr(QName(kEmptyNamespace, "generation"),
-                  base::IntToString(candidate.candidate.generation()));
+                  base::UintToString(candidate.candidate.generation()));
   return result;
 }