Bug 390212. Extra backslash in object attribute name xml-roles. r=surkov, a=dsicore

accessible/src/msaa/nsAccessibleWrap.cpp

@@ -1402,7 +1402,7 @@ nsAccessibleWrap::get_attributes(BSTR *aAttributes)
 
     offset = 0;
     while ((offset = value.FindCharInSet(kCharsToEscape, offset)) != kNotFound) {
-      name.Insert('\\', offset);
+      value.Insert('\\', offset);
       offset += 2;
     }