Add atom for per-process system ion heap size

The pulling code will be added in the next commit.

Bug: 130526489
Test: statsd_testdrive
Change-Id: I0fea4b6a7a8dbbdc574fb342c1e07aa0165bf797
1 file changed
tree: 525a651fa48b05563ac92dc64d9cbf5ee849d93d
  1. stats/