fdo#74697 Add Bluez 5 support for impress remote.

Change-Id: I32f781e4cb662653a2993803cbdc0be90f8e3d0d
Reviewed-on: https://gerrit.libreoffice.org/8821Reviewed-by: Andrzej Hunt <andrzej.hunt@collabora.com>
Tested-by: Andrzej Hunt <andrzej.hunt@collabora.com>

sd/source/ui/remotecontrol/BufferedStreamSocket.cxx

@@ -61,7 +61,7 @@ sal_Int32 BufferedStreamSocket::write( const void* pBuffer, sal_uInt32 n )
 
 void BufferedStreamSocket::close()
 {
-    if( usingCSocket )
+    if( usingCSocket && mSocket != -1 )
     {
 #ifdef WIN32
         ::closesocket( mSocket );

sd/source/ui/remotecontrol/Communicator.cxx

@@ -122,6 +122,8 @@ void Communicator::execute()
     pTransmitter->join();
     pTransmitter = NULL;
 
+    if( mpSocket )
+        mpSocket->close();
     delete mpSocket;