make history actor a child of the round socket actor

modules/round/src/main/Socket.scala

@@ -16,12 +16,14 @@ import makeTimeout.short
 
 private[round] final class Socket(
     gameId: String,
-    history: ActorRef,
+    makeHistory: () ⇒ History,
     getUsername: String ⇒ Fu[Option[String]],
     uidTimeout: Duration,
     socketTimeout: Duration,
     playerTimeout: Duration) extends SocketActor[Member](uidTimeout) {
 
+  private val history = context.actorOf(Props(makeHistory()), name = "history")
+
   private var lastPingTime = nowMillis
 
   // when the players have been seen online for the last time
@@ -98,7 +100,7 @@ private[round] final class Socket(
             white = ownerOf(White).isDefined,
             black = ownerOf(Black).isDefined,
             watchers = showSpectators(userList.flatten, anons.size)
-          ) :: Nil) 
+          ) :: Nil)
         } logFailure ("[round] notify crowd")
     }
   }

modules/round/src/main/SocketHub.scala

@@ -21,21 +21,18 @@ private[round] final class SocketHub(
 
   def receiveSpecific = {
 
-    case msg @ IsConnectedOnGame(gameId, color) ⇒ (sockets get gameId).fold(sender ! false) {
+    case msg @ IsConnectedOnGame(gameId, _) ⇒ (sockets get gameId).fold(sender ! false) {
       _ ? msg pipeTo sender
     }
 
-    case msg @ IsGone(gameId, color) ⇒ (sockets get gameId).fold(sender ! false) {
+    case msg @ IsGone(gameId, _) ⇒ (sockets get gameId).fold(sender ! false) {
       _ ? msg pipeTo sender
     }
   }
 
   def mkSocket(id: String): ActorRef = context.actorOf(Props(new Socket(
     gameId = id,
-    history = context.actorOf(
-      Props(makeHistory()),
-      name = id + "-history"
-    ),
+    makeHistory = makeHistory,
     getUsername = getUsername,
     uidTimeout = uidTimeout,
     socketTimeout = socketTimeout,