fixing memory leaks & mem tracing false alerts

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5811 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mimetype.h

@@ -30,6 +30,8 @@ class wxMimeTypesManagerImpl;
 #include "wx/string.h"
 #include "wx/dynarray.h"
 
+class wxMimeTypeCmnModule;
+
 // This class holds information about a given "file type". File type is the
 // same as MIME type under Unix, but under Windows it corresponds more to an
 // extension than to MIME type (in fact, several extensions may correspond to a
@@ -228,6 +230,8 @@ private:
     
     // if m_impl is NULL, create one
     void EnsureImpl();
+    
+    friend class wxMimeTypeCmnModule;
 };