Watch cookie jar so that reconcilor reacts more quickly.
Also fix handling of /ListAccounts since it returns display email.

BUG=305249

Review URL: https://codereview.chromium.org/133073013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248105 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 248105