GetDefaultProfile fixit for Chrome OS network & power settings.

BUG=322682

Review URL: https://codereview.chromium.org/99133022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241121 0039d316-1c4b-4281-b951-d872f2087c98
Disable ability to show passwords when running in Metro.

BUG=326493

Review URL: https://codereview.chromium.org/107023009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241122 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241122