Ensure that VisitedLink listener Add event only fires when new fingerprint is added, and not during resizing/rebuilding or deleting fingerprints.

R=brettw
TEST=VisitedLinkTest.Listener
BUG=15926

Review URL: http://codereview.chromium.org/149185

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19931 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed