Amith Yamasani 423d48bbba Add a private method to retrieve the header list from PreferenceActivity
This is required by Settings app to be able to update the header list
if the accounts list changed.

Bug: 6685701
Change-Id: If27f83ec86fe1f3519a6e25de4e4fe4864133dc8
2012-06-20 13:54:53 -07:00
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