XPCReadableJSStringWrapper(PRUnichar *chars, size_t length) : nsDependentString(chars, length) { }
XPCReadableJSStringWrapper() : nsDependentString(char_traits::sEmptyBuffer, char_traits::sEmptyBuffer) { SetIsVoid(PR_TRUE); }
    XPCReadableJSStringWrapper(PRUnichar *chars, size_t length) :        nsDependentString(chars, length)    { }