Tested this in Chromium 10.0.640.0 (71497) on Windows 7 (64) against the
latest version of the TweetDeck extension (downloaded from the Chrome Store
minutes ago) and I cannot reproduce the issue.
The location was added to the tweet and no delay or pause occurred.
Additionally accessed http://benwerd.com/lab/geo.php and was prompted for
location and on granting permission it worked fine. Repeated the test and
denied permission, and that worked fine too.
Comment #2 on issue 69798 by the...@chromium.org: TweetDeck App Crash
Chrome
http://code.google.com/p/chromium/issues/detail?id=69798
Most likely bug 59913.