[automerger skipped] Merge "Add API for proxy configuration over VPN." am: 8b5917965d am: ac77629a1e
am: b866a5b6e6 -s ours
am skip reason: change_id Id4dde4a4103fd93bfbbacc52d0e5ade56ae67a6a with SHA1 18622d3d35 is in history

Change-Id: I1b5f49892d2ff473b5fe7d3d1e71e3cd3ffaca26