[rAc] [OSX] Add (?) icon + tooltip to phone number fields.

BUG=315984
TEST=Dialog has (?) icons + tooltips for phone number fields when entering new
     address data in the rAc dialog.
R=groby@chromium.org

Review URL: https://codereview.chromium.org/113713003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241037 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241037
suppress memory leak from MetricsNetworkObserver::ProbeWifiPHYLayerProtocol
TBR=asvitkine@chromium.org
BUG=328987

Review URL: https://codereview.chromium.org/108663005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241039 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241039