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

mojo/public/dart/third_party/watcher/test/directory_watcher/linux_test.dart

Index: mojo/public/dart/third_party/watcher/test/directory_watcher/linux_test.dart
diff --git a/mojo/public/dart/third_party/watcher/test/directory_watcher/linux_test.dart b/mojo/public/dart/third_party/watcher/test/directory_watcher/linux_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..897b1301b43b53942f676c186a92f136990b4dee
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+++ b/mojo/public/dart/third_party/watcher/test/directory_watcher/linux_test.dart
@@ -0,0 +1,46 @@
+// 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.
+
+@TestOn('linux')
+
+import 'package:scheduled_test/scheduled_test.dart';
+import 'package:watcher/src/directory_watcher/linux.dart';
+import 'package:watcher/watcher.dart';
+
+import 'shared.dart';
+import '../utils.dart';
+
+void main() {
+  watcherFactory = (dir) => new LinuxDirectoryWatcher(dir);
+
+  setUp(createSandbox);
+
+  sharedTests();
+
+  test('DirectoryWatcher creates a LinuxDirectoryWatcher on Linux', () {
+    expect(new DirectoryWatcher('.'),
+        new isInstanceOf<LinuxDirectoryWatcher>());
+  });
+
+  test('emits events for many nested files moved out then immediately back in',
+      () {
+    withPermutations((i, j, k) =>
+        writeFile("dir/sub/sub-$i/sub-$j/file-$k.txt"));
+    startWatcher(path: "dir");
+
+    renameDir("dir/sub", "sub");
+    renameDir("sub", "dir/sub");
+
+    allowEither(() {
+      inAnyOrder(withPermutations((i, j, k) =>
+          isRemoveEvent("dir/sub/sub-$i/sub-$j/file-$k.txt")));
+
+      inAnyOrder(withPermutations((i, j, k) =>
+          isAddEvent("dir/sub/sub-$i/sub-$j/file-$k.txt")));
+    }, () {
+      inAnyOrder(withPermutations((i, j, k) =>
+          isModifyEvent("dir/sub/sub-$i/sub-$j/file-$k.txt")));
+    });
+  });
+}