Merge pull request #15006 from Kaev/3.3.5

Updated BattlegroundWS.cpp 15. minute timer check

src/server/game/Battlegrounds/Zones/BattlegroundWS.cpp

@@ -157,7 +157,7 @@ void BattlegroundWS::PostUpdateImpl(uint32 diff)
                     player->CastSpell(player, WS_SPELL_FOCUSED_ASSAULT, true);
                 _flagDebuffState = 1;
             }
-            else if (_flagDebuffState == 1 && _flagSpellForceTimer >= 900000) //15 minutes
+            else if (_flagDebuffState == 1 && _flagSpellForceTimer >= 15*MINUTE*IN_MILLISECONDS) //15 minutes
             {
                 if (Player* player = ObjectAccessor::FindPlayer(m_FlagKeepers[0]))
                 {