activex, mozilla: make sure log resources are properly cleaned on exit

activex/plugin.cpp

@@ -783,6 +783,14 @@ HRESULT VLCPlugin::onClose(DWORD dwSaveOption)
     {
         libvlc_instance_t* p_libvlc = _p_libvlc;
 
+        IVLCLog *p_log;
+    	if( SUCCEEDED(vlcControl2->get_log(&p_log)) )
+        {
+            // make sure the log is disabled
+            p_log->put_verbosity(-1);
+            p_log->Release();
+        }
+
         _p_libvlc = NULL;
         vlcDataObject->onClose();
 

mozilla/control/npolibvlc.h

@@ -201,6 +201,11 @@ protected:
         
     virtual ~LibvlcLogNPObject()
     {
+        if( _p_log )
+        {
+            libvlc_log_close(_p_log, NULL);
+            _p_log = NULL;
+        }
         NPN_ReleaseObject(_p_vlcmessages);
     };