Add an BubbleBorder to BrowserAction popups and fix positioning of the
popup.

BUG=23833,23835
TEST=none

Review URL: http://codereview.chromium.org/259065

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@28187 0039d316-1c4b-4281-b951-d872f2087c98
9 files changed