Adding the base ChromotingInstance implementation and unittests. This class will be used by the ap…

remoting/test/remote_connection_observer.h

Index: remoting/test/remote_connection_observer.h
diff --git a/remoting/test/remote_connection_observer.h b/remoting/test/remote_connection_observer.h
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef REMOTING_TEST_REMOTE_CONNECTION_OBSERVER_H_
+#define REMOTING_TEST_REMOTE_CONNECTION_OBSERVER_H_
+
+#include <string>
+
+#include "remoting/proto/control.pb.h"
+#include "remoting/protocol/connection_to_host.h"
+#include "remoting/protocol/errors.h"
+#include "remoting/protocol/transport.h"
+
+namespace remoting {
+namespace test {
+
+// Interface for a remote connection observer which will be notified when
+// certain connection status changes occur or events from the remote host
+// are received. Observers must not tear-down the object they have registered
+// while in a callback. The callbacks should be used for informational
+// purposes only.
+class RemoteConnectionObserver {
+ public:
+  RemoteConnectionObserver() {}
+  virtual ~RemoteConnectionObserver() {}
+
+  // Called when the connection state has changed.
+  virtual void ConnectionStateChanged(protocol::ConnectionToHost::State state,
+                                      protocol::ErrorCode error_code) {}
+
+  // Called when the connection is ready to be used, |ready| will be true once
+  // the video channel has been established.
+  virtual void ConnectionReady(bool ready) {}
+
+  // Called when a channel changes the type of route it is using.
+  virtual void RouteChanged(const std::string& channel_name,
+                            const protocol::TransportRoute& route) {}
+
+  // Called when the host sends its list of capabilities to the client.
+  virtual void CapabilitiesSet(const std::string& capabilities) {}
+
+  // Called when a pairing response has been set.
+  virtual void PairingResponseSet(
+      const protocol::PairingResponse& pairing_response) {}
+
+  // Called when we have received an ExtensionMessage from the host.
+  virtual void HostMessageReceived(const protocol::ExtensionMessage& message) {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(RemoteConnectionObserver);
+};
+
+}  // namespace test
+}  // namespace remoting
+
+#endif  // REMOTING_TEST_REMOTE_CONNECTION_OBSERVER_H_