Added OOBE update screen stub.
Moved OOBE views classes to the chromeos namespace.

BUG=35249
TEST=run out/Debug/chrome --login-manager --login-screen=update
TBR=denisromanov

(Checking in patch for Denis Romanov, previously reviewed here:
http://codereview.chromium.org/669089/show)

Review URL: http://codereview.chromium.org/669241

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@40842 0039d316-1c4b-4281-b951-d872f2087c98
13 files changed