Interface update, per-method Contexts.

service/info/context.go

Index: service/info/context.go
diff --git a/service/info/context.go b/service/info/context.go
index ff5e30fa2a74349b04abfacb53fe1f39f02db1fe..131ef5f46555d0020b5b12d7818b20982420f7ce 100644
--- a/service/info/context.go
+++ b/service/info/context.go
@@ -33,8 +33,8 @@ func getUnfiltered(c context.Context) RawInterface {
 	return nil
 }
 
-// Get gets the Interface implementation from context.
-func Get(c context.Context) Interface {
+// Raw returns the current filtered RawInterface installed in the Context.
+func Raw(c context.Context) RawInterface {
 	ret := getUnfiltered(c)
 	if ret == nil {
 		return nil
@@ -42,7 +42,7 @@ func Get(c context.Context) Interface {
 	for _, f := range getCurFilters(c) {
 		ret = f(c, ret)
 	}
-	return infoImpl{ret}
+	return ret
 }
 
 // SetFactory sets the function to produce RawInterface instances, as returned