Merge "std::string_view is no longer experimental."
am: c8022a3efc

Change-Id: I75fa251cb6a959e7dfd32524b8d0ffcf839c3dc4
tree: ba913c9c2b0c0048edb03bbb4348600b66a024b0
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/