John Grossman 6fd7789abc 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: I978bf70236095251941776be86abb6a27cc4bf5d
2011-10-28 10:14:48 -04:00
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