Fix shelf_web_socket's Connection handling.

R=rnystrom@google.com
BUG=21894

Review URL: https://codereview.chromium.org//810133002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42446 260f80e4-7a28-3924-810f-c04153c831b5
Depend on the glob package via third_party.

R=sigmund@google.com

Review URL: https://codereview.chromium.org//812873004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42447 260f80e4-7a28-3924-810f-c04153c831b5
Remove pkg/glob from the repo.

See also https://codereview.chromium.org/812873004/, which adds it via
third_party.

R=sigmund@google.com

Review URL: https://codereview.chromium.org//796933005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42448 260f80e4-7a28-3924-810f-c04153c831b5