Mark McLoughlin abe8078b97 Refactor duplicated code in dependencies handling
Whether we're dealing with depends-on or needed-by, the code is
essentially the same, so let's refactor it.

Change-Id: Ibea8a46059b0da5b23af33236bc53952d90e716e
2014-07-12 20:23:12 -07:00
..
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