GitLab

Bring the first passphrase screen UI up to date with equivalent changes made to the encryption tab: learn more link, behavior of passphrase/confirm passphrase boxes.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6353013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72342 0039d316-1c4b-4281-b951-d872f2087c98