John Grossman d7f614f831 Make the LocalClock HAL wrapper use a singleton HAL instance.
Change the local clock helper wrapper to hold just a single copy of the local
time HAL instead of having each wrapper hold their own HAL instance.

Change-Id: Ibc365eccc78a98bd2ea6cf1c57a55a84b843bc2a
2011-08-29 16:02:13 -07:00
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