kiosk: Use kiosk_auth token for primary account id.

kiosk_auth file injects credentials for the primary account id. This CL
puts it back to business.

BUG=348276

Review URL: https://codereview.chromium.org/184473005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254519 0039d316-1c4b-4281-b951-d872f2087c98
Add blundell as OWNER of //components

R=joi@chromium.org

Review URL: https://codereview.chromium.org/185963002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254520 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254519
Move TrimWhitespace to the base namespace.

R=viettrungluu@chromium.org, viettrungluu

Review URL: https://codereview.chromium.org/183853011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254521 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254521