Remove the http package from the repo.

pkg/http/lib/src/io_client.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.
-
-library io_client;
-
-import 'dart:async';
-
-import 'package:stack_trace/stack_trace.dart';
-
-import 'base_client.dart';
-import 'base_request.dart';
-import 'exception.dart';
-import 'io.dart' as io;
-import 'streamed_response.dart';
-
-/// A `dart:io`-based HTTP client.
-///
-/// This is the default client when running on the command line.
-class IOClient extends BaseClient {
-  /// The underlying `dart:io` HTTP client.
-  var _inner;
-
-  /// Creates a new HTTP client.
-  ///
-  /// [innerClient] must be a `dart:io` HTTP client. If it's not passed, a
-  /// default one will be instantiated.
-  IOClient([innerClient]) {
-    io.assertSupported("IOClient");
-    if (innerClient != null) {
-      // TODO(nweiz): remove this assert when we can type [innerClient]
-      // properly.
-      assert(io.isHttpClient(innerClient));
-      _inner = innerClient;
-    } else {
-      _inner = io.newHttpClient();
-    }
-  }
-
-  /// Sends an HTTP request and asynchronously returns the response.
-  Future<StreamedResponse> send(BaseRequest request) {
-    var stream = request.finalize();
-
-    return Chain.track(_inner.openUrl(request.method, request.url))
-        .then((ioRequest) {
-      var contentLength = request.contentLength == null ?
-          -1 : request.contentLength;
-      ioRequest
-          ..followRedirects = request.followRedirects
-          ..maxRedirects = request.maxRedirects
-          ..contentLength = contentLength
-          ..persistentConnection = request.persistentConnection;
-      request.headers.forEach((name, value) {
-        ioRequest.headers.set(name, value);
-      });
-      return Chain.track(stream.pipe(ioRequest));
-    }).then((response) {
-      var headers = {};
-      response.headers.forEach((key, values) {
-        headers[key] = values.join(',');
-      });
-
-      var contentLength = response.contentLength == -1 ?
-          null : response.contentLength;
-      return new StreamedResponse(
-          response.handleError((error) =>
-              throw new ClientException(error.message, error.uri),
-              test: (error) => io.isHttpException(error)),
-          response.statusCode,
-          contentLength: contentLength,
-          request: request,
-          headers: headers,
-          isRedirect: response.isRedirect,
-          persistentConnection: response.persistentConnection,
-          reasonPhrase: response.reasonPhrase);
-    }).catchError((error) {
-      if (!io.isHttpException(error)) throw error;
-      throw new ClientException(error.message, error.uri);
-    });
-  }
-
-  /// Closes the client. This terminates all active connections. If a client
-  /// remains unclosed, the Dart process may not terminate.
-  void close() {
-    if (_inner != null) _inner.close(force: true);
-    _inner = null;
-  }
-}