logd: white and black switch to std::string

Bug: 23350706
Change-Id: I92f21aee0a9702f63e8465851d0f35007b0469a7
2 files changed
tree: b50355507719d65b63a5aa9b70c11910921ffc58
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/