[Password Manager] Persist new PasswordForm fields in KWallet

BUG=

Review URL: https://codereview.chromium.org/180743006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254687 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254687
Set the parent window handle when starting the elevated native messaging host to ensure the UAC prompt has focus.

BUG=347776

Review URL: https://codereview.chromium.org/183513006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254688 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254688