Use SignalingAddress in SignalStrategy insterface.

remoting/signaling/mock_signal_strategy.cc

Index: remoting/signaling/mock_signal_strategy.cc
diff --git a/remoting/signaling/mock_signal_strategy.cc b/remoting/signaling/mock_signal_strategy.cc
index 71335874459a4faea1bdd5ccc76bf59edc43909c..2dd562b30730a7b758baadc18c9e226928f52b38 100644
--- a/remoting/signaling/mock_signal_strategy.cc
+++ b/remoting/signaling/mock_signal_strategy.cc
@@ -6,7 +6,12 @@
 
 namespace remoting {
 
-MockSignalStrategy::MockSignalStrategy() { }
-MockSignalStrategy::~MockSignalStrategy() { }
+MockSignalStrategy::MockSignalStrategy(const SignalingAddress& address)
+    : local_address_(address) {}
+MockSignalStrategy::~MockSignalStrategy() {}
+
+const SignalingAddress& MockSignalStrategy::GetLocalAddress() const {
+  return local_address_;
+}
 
 }  // namespace remoting