Switch pkg packages, pub, and dartdoc to use package: imports.

utils/tests/pub/oauth2_test.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 oauth2_test;
 
 import 'dart:io';
 import 'dart:json' as json;
 import 'dart:uri';
 
-import '../../../pkg/http/lib/http.dart' as http;
-import '../../../pkg/scheduled_test/lib/scheduled_process.dart';
-import '../../../pkg/scheduled_test/lib/scheduled_test.dart';
-import '../../../pkg/scheduled_test/lib/scheduled_server.dart';
+import 'package:http/http.dart' as http;
+import 'package:scheduled_test/scheduled_process.dart';
+import 'package:scheduled_test/scheduled_test.dart';
+import 'package:scheduled_test/scheduled_server.dart';
 
 import '../../pub/io.dart';
 import '../../pub/utils.dart';
 import 'descriptor.dart' as d;
 import 'test_pub.dart';
 
 import 'dart:async';
 
 main() {
   setUp(() => d.validPackage.create());
@@ skipping 230 matching lines @@
           new ContentType("application", "json");
       request.response.write(json.stringify({
         "access_token": accessToken,
         "token_type": "bearer"
       }));
       request.response.close();
     });
   });
 }