Move request.http_request to ac.request in envoy.api.v2.auth package. (#349)
Move request.http_request to ac.request in envoy.api.v2.auth package. (#349)

Signed-off-by: Mandar U Jog <f302b44f4e0131066b238a83bb9dde64ee555aeb@google.com>
jrajahalme/envoy-api,jrajahalme/envoy-api,jrajahalme/envoy-api,lyft/envoy-api,lyft/envoy-api,jrajahalme/envoy-api,lyft/envoy-api