DocumentViewerImpl::DocumentViewerImpl(nsIPresContext* aPresContext) : mPresContext(aPresContext)
DocumentViewerImpl::DocumentViewerImpl()
DocumentViewerImpl::DocumentViewerImpl(nsIPresContext* aPresContext)  : mPresContext(aPresContext){  NS_INIT_ISUPPORTS();  mHintCharsetSource = kCharsetUninitialized;  mAllowPlugins      = PR_TRUE;  PrepareToStartLoad();}