Replace PO2TS::GetPrimaryAccountId() with SMB::GetAuthenticatedAccountId.

The functionality is the same, just moving the code to a new place.

NOTRY=True
BUG=333995
R=bauerb@chromium.org, brettw@chromium.org, joaodasilva@chromium.org, nhiroki@chromium.org, noms@chromium.org, rlarocque@chromium.org

Review URL: https://codereview.chromium.org/150003004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251221 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251221
[ProtocolHandlers] Add a permission bubble client for RPH requests.

R=benwells@chromium.org
BUG=332115

Review URL: https://codereview.chromium.org/152143003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251222 0039d316-1c4b-4281-b951-d872f2087c98
Remove CloudPrintAccountManager.

It is an unused class from back when we thought we may want to have
multi-account support in the devices page.

BUG=

Review URL: https://codereview.chromium.org/163943005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251223 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251223