@VisibleForTesting
  static String whereClause(AccountIndex index) {
    Preconditions.checkNotNull(index);
    return NAME_COLUMN + " = " + DatabaseUtils.sqlEscapeString(index.getName()) +
        " AND " + whereClauseForIssuer(index.getIssuer());
  }
Finds the Google corp account in this database.

@return the account if it is present or {@code null} if the account does not exist.
java/com/google/android/apps/authenticator/otp/AccountDb.java