Stephen Hines 23360cc498 Remove invalid left shifts of -1.
Bug: 24492248

Shifting sign bits left is considered undefined behavior, so we need to
switch these uses to unsigned equivalents. The time_t-related code is
updated relative to upstream sources.

Change-Id: I226e5a929a10f5c57dfcb90c748fdac34eb377c2
2015-09-29 10:04:54 -07:00
..
2015-09-29 10:04:54 -07:00
2014-02-28 14:38:14 +00:00