Update oauth2's dependency on http.

OAuth2 was upgraded to support the new HTTP API prior to the new
conventions for package versioning, and the upgraded version hasn't
been released yet.

R=rnystrom@google.com
BUG=15809

Review URL: https://codereview.chromium.org//98163005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@31523 260f80e4-7a28-3924-810f-c04153c831b5
1 file changed
tree: 6a577227cd04da421ffed0834430b187c018a56c
  1. lib/
  2. test/
  3. pubspec.yaml