Bustage followup from bug 381315

git-svn-id: svn://10.0.0.236/trunk@227016 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/xpcom/glue/nsINIParser.cpp

@@ -61,6 +61,7 @@ public:
   ~AutoFILE() { if (fp_) fclose(fp_); }
   operator FILE *() { return fp_; }
   FILE** operator &() { return &fp_; }
+  void operator=(FILE *fp) { fp_ = fp; }
 private:
   FILE *fp_;
 };