Get rid of a lot of () for getters.
Get rid of a lot of () for getters.

R=bak@google.com
BUG=

Review URL: https://chromiumcodereview.appspot.com//10919146

git-svn-id: 29b42837285a5fdcb6c8ad0409bff8538fc60ed2@12017 260f80e4-7a28-3924-810f-c04153c831b5

astashov/logging,dart-lang/logging