Add dart:sky.internals and dart:sky_builtin_natives to Sky sdk_ext

mojo/public/tools/dart_pkg.py

 #!/usr/bin/env python
 #
 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Utility for dart_pkg and dart_pkg_app rules"""
 
 import argparse
 import errno
@@ skipping 169 matching lines @@
     parser.add_argument('--mojom-sources',
                         metavar='mojom_sources',
                         help='.mojom and .mojom.dart sources',
                         nargs='*',
                         default=[])
     parser.add_argument('--sdk-ext-directories',
                         metavar='sdk_ext_directories',
                         help='Directory containing .dart sources',
                         nargs='*',
                         default=[])
+    parser.add_argument('--sdk-ext-files',
+                        metavar='sdk_ext_files',
+                        help='List of .dart files that are part of of sdk_ext.',
+                        nargs='*',
+                        default=[])
     args = parser.parse_args()
 
     # We must have a pubspec.yaml.
     assert has_pubspec_yaml(args.package_sources)
 
     # Copy or symlink package sources into pkg directory.
     target_dir = os.path.join(args.pkg_directory, args.package_name)
     common_source_prefix = os.path.commonprefix(args.package_sources)
     for source in args.package_sources:
         relative_source = os.path.relpath(source, common_source_prefix)
         target = os.path.join(target_dir, relative_source)
         copy_or_link(source, target)
 
     # Copy sdk-ext sources into pkg directory
     sdk_ext_dir = os.path.join(target_dir, 'sdk_ext')
     for directory in args.sdk_ext_directories:
         sdk_ext_sources = list_files(directory, dart_filter)
         common_prefix = os.path.commonprefix(sdk_ext_sources)
         for source in sdk_ext_sources:
             relative_source = os.path.relpath(source, common_prefix)
             target = os.path.join(sdk_ext_dir, relative_source)
             copy_or_link(source, target)
+    for source in args.sdk_ext_files:
+        common_prefix = os.path.commonprefix(args.sdk_ext_files)
+        relative_source = os.path.relpath(source, common_prefix)
+        target = os.path.join(sdk_ext_dir, relative_source)
+        copy_or_link(source, target)
 
     lib_path = os.path.join(target_dir, "lib")
     lib_mojom_path = os.path.join(lib_path, "mojom")
 
     # Copy generated mojom.dart files.
     generated_mojom_lib_path = os.path.join(args.gen_directory, "mojom/lib")
     for mojom_source_path in args.mojom_sources:
         path = mojom_path(mojom_source_path)
         source_path = '%s.dart' % os.path.join(generated_mojom_lib_path, path)
         target_path = '%s.dart' % os.path.join(lib_mojom_path, path)
         copy(source_path, target_path)
 
     # Symlink packages/
     package_path = os.path.join(args.package_root, args.package_name)
     link(lib_path, package_path)
 
     # Remove any broken symlinks in target_dir and package root.
     remove_broken_symlinks(target_dir)
     remove_broken_symlinks(args.package_root)
 
     # Write stamp file.
     with open(args.stamp_file, 'w'):
         pass
 
 if __name__ == '__main__':
     sys.exit(main())