Store a pointer to each ClassFactory so we can correctly release it when the browser closes. This fixes a few more memory leaks.

See #13500

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69314 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/webview_ie.h

@@ -24,6 +24,7 @@
 
 struct IHTMLDocument2;
 class wxFSFile;
+class ClassFactory;
 
 class WXDLLIMPEXP_WEBVIEW wxWebViewIE : public wxWebView
 {
@@ -42,6 +43,8 @@ public:
        Create(parent, id, url, pos, size, style, name);
    }
 
+    ~wxWebViewIE();
+
     bool Create(wxWindow* parent,
            wxWindowID id,
            const wxString& url = wxWebViewDefaultURLStr,
@@ -149,6 +152,7 @@ private:
     //an item from the history. The position is stored as an int, and reflects
     //where we are in the history list.
     wxVector<wxSharedPtr<wxWebViewHistoryItem> > m_historyList;
+    wxVector<ClassFactory*> m_factories;
     int m_historyPosition;
     bool m_historyLoadingFromList;
     bool m_historyEnabled;