Revert r43217, r43215, r43208, r43207, and r43202.

runtime/bin/vmservice/loader.dart

Index: runtime/bin/vmservice/loader.dart
diff --git a/runtime/bin/vmservice/loader.dart b/runtime/bin/vmservice/loader.dart
deleted file mode 100644
index 6d81f0454a0da3d6f6e475c6f922ec24cdd9f37a..0000000000000000000000000000000000000000
--- a/runtime/bin/vmservice/loader.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2015, 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.
-
-part of vmservice_io;
-
-var _httpClient;
-
-void _loadHttp(sendPort, uri) {
-  if (_httpClient == null) {
-    _httpClient = new HttpClient()..maxConnectionsPerHost = 6;
-  }
-  _httpClient.getUrl(uri)
-    .then((HttpClientRequest request) => request.close())
-    .then((HttpClientResponse response) {
-      var builder = new BytesBuilder(copy: false);
-      response.listen(
-          builder.add,
-          onDone: () {
-            if (response.statusCode != 200) {
-              var msg = 'Failure getting $uri: '
-                        '${response.statusCode} ${response.reasonPhrase}';
-              sendPort.send(msg);
-            } else {
-              sendPort.send(builder.takeBytes());
-            }
-          },
-          onError: (e) {
-            sendPort.send(e.toString());
-          });
-    })
-    .catchError((e) {
-      sendPort.send(e.toString());
-    });
-  // It's just here to push an event on the event loop so that we invoke the
-  // scheduled microtasks.
-  Timer.run(() {});
-}
-
-void _loadFile(sendPort, path) {
-  var sourceFile = new File(path);
-  sourceFile.readAsBytes().then((data) {
-    sendPort.send(data);
-  },
-  onError: (e) {
-    sendPort.send(e.toString());
-  });
-}
-
-_processLoadRequest(request) {
-  var sp = request[0];
-  var uri = Uri.parse(request[1]);
-  if (uri.scheme == 'file') {
-    _loadFile(sp, uri.toFilePath());
-  } else if ((uri.scheme == 'http') || (uri.scheme == 'https')) {
-    _loadHttp(sp, uri);
-  } else {
-    sp.send('Unknown scheme for $uri');
-  }
-}