Fix activity leak in Dialer

Make sure to close the contact lookup thread when ListsFragment is
destroyed, just like in CallLogFragment.

The thread was holding a reference to the outer adapter because it was
a non-static inner class, which was causing the adapter and activity to
leak.

Bug: 17472228
Change-Id: Ic2d6fbded0c8c40cf99d779fe24a535d75bc802a
1 file changed
tree: f837713ebf1767bbeab6a994a4af18f79fdfcfce
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. proguard.flags