logd: statistics switch to std::string

Bug: 23350706
Change-Id: I5564898c4f67b8fcc43cee64604855f789409482
2 files changed
tree: c87ae695a49726fbf69c6e8ec2e51daaddeda764
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/