Clean up standalone service entry points

This gets rid of the old C-linkage entry point for standalone service
binaries, in favor of a cleaner and typesafe C++ entry point which takes
a proper ServiceRequest.

Bug: 911217
Change-Id: Ide390764db97eaa45806fdb3ca0f3e39a408baa7
Commit-Queue: Ken Rockot <>
Reviewed-by: Xiaohan Wang <>
Reviewed-by: Oksana Zhuravlova <>
Reviewed-by: Ken Rockot <>
Cr-Commit-Position: refs/heads/master@{#613691}
36 files changed