Fix classes that have too many virtuals for inline constructors.

remoting/test/remote_connection_observer.h

 // 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) {}
 
+ protected:
+  RemoteConnectionObserver() {}
+
  private:
   DISALLOW_COPY_AND_ASSIGN(RemoteConnectionObserver);
 };
 
 }  // namespace test
 }  // namespace remoting
 
 #endif  // REMOTING_TEST_REMOTE_CONNECTION_OBSERVER_H_