Remove more uses of NOTIFICATION_WEB_CONTENTS_TITLE_UPDATED.

BUG=170921
TEST=already covered
NOTRY=true

Review URL: https://codereview.chromium.org/25931002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227288 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227288