Refactor, rename, and generally rationalize code in the Frog isolates library,

lib/isolate/frog/messages.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // Defines message visitors, serialization, and deserialization.
 
 /** Serialize [message] (or simulate serialization). */
 _serializeMessage(message) {
   if (_globalState.needSerialization) {
     return new _Serializer().traverse(message);
@@ skipping 170 matching lines @@
 
     int id = _nextFreeRefId++;
     _attachInfo(map, id);
     var keys = _serializeList(map.getKeys());
     var values = _serializeList(map.getValues());
     // TODO(floitsch): we are losing the generic type.
     return ['map', id, keys, values];
   }
 
   visitNativeJsSendPort(_NativeJsSendPort port) {
-    return ['sendport', _globalState.currentWorkerId,
+    return ['sendport', _globalState.currentManagerId,
         port._isolateId, port._receivePort._id];
   }
 
   visitWorkerSendPort(_WorkerSendPort port) {
     return ['sendport', port._workerId, port._isolateId, port._receivePortId];
   }
 
   visitBufferingSendPort(_BufferingSendPort port) {
     if (port._port != null) {
       return _visitNativeOrWorkerPort(port._port);
@@ skipping 73 matching lines @@
     assert(len == values.length);
     for (int i = 0; i < len; i++) {
       var key = _deserializeHelper(keys[i]);
       var value = _deserializeHelper(values[i]);
       result[key] = value;
     }
     return result;
   }
 
   SendPort _deserializeSendPort(List x) {
-    int workerId = x[1];
+    int managerId = x[1];
     int isolateId = x[2];
     int receivePortId = x[3];
-    // If two isolates are in the same worker, we use NativeJsSendPorts to
+    // If two isolates are in the same manager, we use NativeJsSendPorts to
     // deliver messages directly without using postMessage.
-    if (workerId == _globalState.currentWorkerId) {
+    if (managerId == _globalState.currentManagerId) {
       var isolate = _globalState.isolates[isolateId];
       if (isolate == null) return null; // Isolate has been closed.
       var receivePort = isolate.lookup(receivePortId);
       return new _NativeJsSendPort(receivePort, isolateId);
     } else {
-      return new _WorkerSendPort(workerId, isolateId, receivePortId);
+      return new _WorkerSendPort(managerId, isolateId, receivePortId);
     }
   }
 }
 
 // only visible for testing purposes
 // TODO(sigmund): remove once we can disable privacy for testing (bug #1882)
 class TestingOnly {
   static copy(x) {
     return new _Copier().traverse(x);
   }
 
   // only visible for testing purposes
   static serialize(x) {
     _Serializer serializer = new _Serializer();
     _Deserializer deserializer = new _Deserializer();
     return deserializer.deserialize(serializer.traverse(x));
   }
 }