rem: delete this.mViewerHash[aViewer.uid].viewer; 
add: delete this.mViewerHash[aViewer.uid]; 
context:   uncacheViewer: function(aViewer)  {     delete this.mViewerHash[aViewer.uid].viewer;  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/a7c48464e3280bcd1d3585d7cc0bc61c943ad5a5/ViewerRegistry.js/clean/extensions/inspector/resources/content/ViewerRegistry.js