Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/unittest/lib/src/test_case.dart

Index: mojo/public/dart/third_party/unittest/lib/src/test_case.dart
diff --git a/mojo/public/dart/third_party/unittest/lib/src/test_case.dart b/mojo/public/dart/third_party/unittest/lib/src/test_case.dart
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+// 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 unittest.test_case;
+
+import '../unittest.dart';
+
+/// An individual unit test.
+abstract class TestCase {
+  /// A unique numeric identifier for this test case.
+  int get id;
+
+  /// A description of what the test is specifying.
+  String get description;
+
+  /// The error or failure message for the tests.
+  ///
+  /// Initially an empty string.
+  String get message;
+
+  /// The result of the test case.
+  ///
+  /// If the test case has is completed, this will be one of [PASS], [FAIL], or
+  /// [ERROR]. Otherwise, it will be `null`.
+  String get result;
+
+  /// Returns whether this test case passed.
+  bool get passed;
+
+  /// The stack trace for the error that caused this test case to fail, or
+  /// `null` if it succeeded.
+  StackTrace get stackTrace;
+
+  /// The name of the group within which this test is running.
+  String get currentGroup;
+
+  /// The time the test case started running.
+  ///
+  /// `null` if the test hasn't yet begun running.
+  DateTime get startTime;
+
+  /// The amount of time the test case took.
+  ///
+  /// `null` if the test hasn't finished running.
+  Duration get runningTime;
+
+  /// Whether this test is enabled.
+  ///
+  /// Disabled tests won't be run.
+  bool get enabled;
+
+  /// Whether this test case has finished running.
+  bool get isComplete => !enabled || result != null;
+}