Move pub into sdk/lib/_internal.

utils/pub/validator/size.dart

-// Copyright (c) 2013, 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 size_validator;
-
-import 'dart:async';
-import 'dart:math' as math;
-
-import '../entrypoint.dart';
-import '../validator.dart';
-
-/// The maximum size of the package to upload (10 MB).
-const _MAX_SIZE = 10 * 1024 * 1024;
-
-/// A validator that validates that a package isn't too big.
-class SizeValidator extends Validator {
-  final Future<int> packageSize;
-
-  SizeValidator(Entrypoint entrypoint, this.packageSize)
-    : super(entrypoint);
-
-  Future validate() {
-    return packageSize.then((size) {
-      if (size <= _MAX_SIZE) return;
-      var sizeInMb = (size / math.pow(2, 20)).toStringAsPrecision(4);
-      errors.add("Your package is $sizeInMb MB. Hosted packages must be "
-          "smaller than 10 MB.");
-    });
-  }
-}
-