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

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 284 matching lines @@
   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)
 
   # Symlink packages/
   package_path = os.path.join(args.package_root, args.package_name)
   link(lib_path, package_path)
 
-  # Symlink non-dart-pkg dependent packages
-  dep_packages = os.path.join(common_source_prefix, 'packages')
-  if os.path.exists(dep_packages):
-    for package in os.listdir(dep_packages):
-      source = os.path.join(dep_packages, package)
-      target = os.path.join(args.package_root, package)
-      if not os.path.exists(target):
-        link(source, target)
-
   # TODO(zra): Remove when bindings are generated by the mojom package and
   # checked in.
   # Copy generated bindings back to the source directory.
   generated_bindings = list_files(lib_path, mojom_dart_filter)
   for binding in generated_bindings:
     lib_rel_path = os.path.relpath(binding, lib_path)
     dest = os.path.join(common_source_prefix, 'lib', lib_rel_path)
     remove_if_exists(dest)
     copy(binding, dest)
 
@@ skipping 20 matching lines @@
       return result
 
   # Write stamp file.
   with open(args.stamp_file, 'w'):
     pass
 
   return 0
 
 if __name__ == '__main__':
   sys.exit(main())