Remove deps from reloader

pkg/front_end/lib/src/vm/reload.dart

Index: pkg/front_end/lib/src/vm/reload.dart
diff --git a/pkg/front_end/lib/src/vm/reload.dart b/pkg/front_end/lib/src/vm/reload.dart
deleted file mode 100644
index 806ef594c4f9f468a34ce8fa2dc73146de8eb130..0000000000000000000000000000000000000000
--- a/pkg/front_end/lib/src/vm/reload.dart
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright (c) 2017, 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.
-
-/// A helper library to connect to an existing VM and trigger a hot-reload via
-/// its service protocol.
-///
-/// Usage:
-///
-/// ```
-///     var reloader = new VmReloader();
-///     await reloader.reload(uriToEntryScript);
-///     ...
-///     await reloader.disconnect();
-/// ```
-library front_end.src.vm.reload;
-
-import 'dart:async';
-import 'package:json_rpc_2/json_rpc_2.dart' as json_rpc;
-import 'package:stream_channel/stream_channel.dart';
-import 'package:web_socket_channel/io.dart';
-
-/// A user API to trigger hot reloads on a running VM via the VM's service
-/// protocol.
-class VmReloader {
-  /// Port used to connect to the vm service protocol, typically 8181.
-  final int port;
-
-  /// An peer point used to send service protocol messages. The service
-  /// protocol uses JSON rpc on top of web-sockets.
-  json_rpc.Peer get rpc => _rpc ??= _createPeer();
-  json_rpc.Peer _rpc;
-
-  /// The main isolate ID of the running VM. Needed to indicate to the VM which
-  /// isolate to reload.
-  FutureOr<String> get mainId async => _mainId ??= await _computeMainId();
-  String _mainId;
-
-  VmReloader([this.port = 8181]);
-
-  /// Establishes the JSON rpc connection.
-  json_rpc.Peer _createPeer() {
-    StreamChannel socket =
-        new IOWebSocketChannel.connect('ws://127.0.0.1:$port/ws');
-    var peer = new json_rpc.Peer(socket);
-    peer.listen().then((_) {
-      if (VERBOSE_DEBUG) print('connection to vm-service closed');
-      return disconnect();
-    }).catchError((e) {
-      if (VERBOSE_DEBUG) print('error connecting to the vm-service');
-      return disconnect();
-    });
-    return peer;
-  }
-
-  /// Retrieves the ID of the main isolate using the service protocol.
-  Future<String> _computeMainId() async {
-    var vm = await rpc.sendRequest('getVM');
-    var isolates = vm['isolates'];
-    for (var isolate in isolates) {
-      if (isolate['name'].contains(r'$main')) {
-        return isolate['id'];
-      }
-    }
-    return isolates.first['id'];
-  }
-
-  /// Send a request to the VM to reload sources from [entryUri].
-  ///
-  /// This will establish a connection with the VM assuming it is running on the
-  /// local machine and listening on [port] for service protocol requests.
-  ///
-  /// The result is the JSON map received from the reload request.
-  Future<Map> reload(Uri entryUri) async {
-    var id = await mainId;
-    var result = await rpc.sendRequest('reloadSources', {
-      'isolateId': id,
-      'rootLibUri': entryUri.path,
-    });
-    return result;
-  }
-
-  /// Close any connections used to communicate with the VM.
-  Future disconnect() async {
-    if (_rpc == null) return null;
-    this._mainId = null;
-    if (!_rpc.isClosed) {
-      var future = _rpc.close();
-      _rpc = null;
-      return future;
-    }
-    return null;
-  }
-}
-
-const VERBOSE_DEBUG = false;