A new authenticated connection evicts an old one.

remoting/protocol/protocol_mock_objects.h

Index: remoting/protocol/protocol_mock_objects.h
diff --git a/remoting/protocol/protocol_mock_objects.h b/remoting/protocol/protocol_mock_objects.h
index 57dad6ab80d04a9f2b01ed9a8f9ec71155f65bee..29c857e986eca147089ebf144215cd9d62473335 100644
--- a/remoting/protocol/protocol_mock_objects.h
+++ b/remoting/protocol/protocol_mock_objects.h
@@ -70,8 +70,9 @@ class MockHostStub : public HostStub {
 
   MOCK_METHOD2(SuggestResolution, void(const SuggestResolutionRequest* msg,
                                        Task* done));
-  MOCK_METHOD2(BeginSessionRequest,
-               void(const LocalLoginCredentials* credentials, Task* done));
+  MOCK_METHOD3(BeginSessionRequest,
+               void(ConnectionToClient* connection,
+                    const LocalLoginCredentials* credentials, Task* done));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockHostStub);