Initial distributor implementation

appengine/cmd/dm/service/service.go

Index: appengine/cmd/dm/service/service.go
diff --git a/appengine/cmd/dm/service/service.go b/appengine/cmd/dm/service/service.go
index 1c327cdab298fe31d59bb2892ce51ef30d096282..5001ff5b0e7b03119688df2942f748a067001439 100644
--- a/appengine/cmd/dm/service/service.go
+++ b/appengine/cmd/dm/service/service.go
@@ -6,12 +6,15 @@ package service
 
 import (
 	"github.com/GoogleCloudPlatform/go-endpoints/endpoints"
+	"github.com/luci/luci-go/appengine/cmd/dm/distributor"
 	"github.com/luci/luci-go/appengine/ephelper"
 )
 
 // DungeonMaster is the endpoints server object.
 type DungeonMaster struct {
 	ephelper.ServiceBase
+
+	distributors distributor.Registry
 }
 
 // MethodInfo provides the method info map that each service
@@ -31,3 +34,10 @@ func RegisterEndpointsService(srv *endpoints.Server) error {
 	return ephelper.Register(srv, &DungeonMaster{},
 		DungeonMasterServiceInfo, MethodInfo)
 }
+
+// RegisterEndpointsServiceWithDistributors is used to actually set up the DM
+// frontends.
+func RegisterEndpointsServiceWithDistributors(srv *endpoints.Server, reg distributor.Registry) error {
+	return ephelper.Register(srv, &DungeonMaster{distributors: reg},
+		DungeonMasterServiceInfo, MethodInfo)
+}