Cherry-pick sdk sandbox atoms messages Test: manaully (m libstats_proto_host) Bug: 301923349 (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:4076c6608d1dc204753cbd69e2c5c4df6f09415b) (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:e049d919e8012b4e8cee5f4c3e3552cee3f33721) Merged-In: I0f3332de525b64aaa9c305dc62d6417145157ffd Change-Id: I0f3332de525b64aaa9c305dc62d6417145157ffd Merged-In: I766fa6939efc92833081dfc80378e634ac696cc1