Update StatsLogProcessor to handle BinaryPushStateChanged

Also changed StatsLog to call write() instead of the hard coded function
in StatsService.

Test: gts-tradefed run gts-dev --module GtsStatsdHostTestCases
Change-Id: I26171fa4cfc877e1e179b74ec8076d964aff8548
1 file changed
tree: afb1d600b2854fc85068f38044379abb99ec59d4
  1. apex/