Two minor cleanups in remoting protocol.

remoting/protocol/webrtc_connection_to_client.h

Index: remoting/protocol/webrtc_connection_to_client.h
diff --git a/remoting/protocol/webrtc_connection_to_client.h b/remoting/protocol/webrtc_connection_to_client.h
index 30a808d267e34339a5029b81e4da6f1461ed5d50..2e16b55e65a439566358e54c35ad5f4044cf6acb 100644
--- a/remoting/protocol/webrtc_connection_to_client.h
+++ b/remoting/protocol/webrtc_connection_to_client.h
@@ -40,7 +40,6 @@ class WebrtcConnectionToClient : public ConnectionToClient,
       ConnectionToClient::EventHandler* event_handler) override;
   Session* session() override;
   void Disconnect(ErrorCode error) override;
-  void OnInputEventReceived(int64_t timestamp) override;
   std::unique_ptr<VideoStream> StartVideoStream(
       std::unique_ptr<webrtc::DesktopCapturer> desktop_capturer) override;
   std::unique_ptr<AudioStream> StartAudioStream(
@@ -70,6 +69,9 @@ class WebrtcConnectionToClient : public ConnectionToClient,
   void OnChannelClosed(ChannelDispatcherBase* channel_dispatcher) override;
 
  private:
+  // Callback for the event dispatcher.
+  void OnInputEventReceived(int64_t timestamp);
+
   base::ThreadChecker thread_checker_;
 
   // Event handler for handling events sent from this object.