Refactors the login manager code to have two windows:
. background window containing the status and visual background.
. WizardController creates it's own window for showing the various
  wizard dialogs.

I needed to separate these two out as if you have logged in once I
still want the background, and may end up showing the
wizardcontrollers later.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/832002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@41219 0039d316-1c4b-4281-b951-d872f2087c98
12 files changed