Cross Reference: /external/grpc-grpc-java/examples/src/main/proto

`Name`	`Date`	`Size`
Up to higher level directory
`hello_streaming.proto`	22-Oct-2020	`1.2K`
`helloworld.proto`	22-Oct-2020	`1.1K`
`route_guide.proto`	22-Oct-2020	`3.5K`