Fix visiblity of LiskDAO::getConfiguration()

Summary: Ref T6822.

Test Plan: `grep`

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: hach-que, Korvin, epriestley

Maniphest Tasks: T6822

Differential Revision: https://secure.phabricator.com/D11370

src/applications/oauthserver/storage/PhabricatorOAuthClientAuthorization.php

@@ -17,7 +17,7 @@ final class PhabricatorOAuthClientAuthorization
     return implode(' ', $scopes);
   }
 
-  public function getConfiguration() {
+  protected function getConfiguration() {
     return array(
       self::CONFIG_AUX_PHID => true,
       self::CONFIG_SERIALIZATION => array(

src/applications/oauthserver/storage/PhabricatorOAuthServerAccessToken.php

@@ -8,7 +8,7 @@ final class PhabricatorOAuthServerAccessToken
   protected $userPHID;
   protected $clientPHID;
 
-  public function getConfiguration() {
+  protected function getConfiguration() {
     return array(
       self::CONFIG_COLUMN_SCHEMA => array(
         'token' => 'text32',

src/applications/oauthserver/storage/PhabricatorOAuthServerAuthorizationCode.php

@@ -10,7 +10,7 @@ final class PhabricatorOAuthServerAuthorizationCode
   protected $userPHID;
   protected $redirectURI;
 
-  public function getConfiguration() {
+  protected function getConfiguration() {
     return array(
       self::CONFIG_COLUMN_SCHEMA => array(
         'code' => 'text32',

src/applications/oauthserver/storage/PhabricatorOAuthServerClient.php

@@ -27,7 +27,7 @@ final class PhabricatorOAuthServerClient
       ->setSecret(Filesystem::readRandomCharacters(32));
   }
 
-  public function getConfiguration() {
+  protected function getConfiguration() {
     return array(
       self::CONFIG_AUX_PHID => true,
       self::CONFIG_COLUMN_SCHEMA => array(