gRPC migration

Change-Id: I3129ae27d7ee12a23c7046f0d877e8064f2fd7f4
diff --git a/vendor/google.golang.org/protobuf/internal/impl/codec_field.go b/vendor/google.golang.org/protobuf/internal/impl/codec_field.go
index c00744d..cb4b482 100644
--- a/vendor/google.golang.org/protobuf/internal/impl/codec_field.go
+++ b/vendor/google.golang.org/protobuf/internal/impl/codec_field.go
@@ -10,6 +10,7 @@
 	"sync"
 
 	"google.golang.org/protobuf/encoding/protowire"
+	"google.golang.org/protobuf/internal/errors"
 	"google.golang.org/protobuf/proto"
 	pref "google.golang.org/protobuf/reflect/protoreflect"
 	preg "google.golang.org/protobuf/reflect/protoregistry"
@@ -20,6 +21,7 @@
 
 func (errInvalidUTF8) Error() string     { return "string field contains invalid UTF-8" }
 func (errInvalidUTF8) InvalidUTF8() bool { return true }
+func (errInvalidUTF8) Unwrap() error     { return errors.Error }
 
 // initOneofFieldCoders initializes the fast-path functions for the fields in a oneof.
 //
@@ -242,7 +244,7 @@
 	}
 	v, n := protowire.ConsumeBytes(b)
 	if n < 0 {
-		return out, protowire.ParseError(n)
+		return out, errDecode
 	}
 	if p.Elem().IsNil() {
 		p.SetPointer(pointerOfValue(reflect.New(f.mi.GoReflectType.Elem())))
@@ -276,7 +278,7 @@
 	}
 	v, n := protowire.ConsumeBytes(b)
 	if n < 0 {
-		return out, protowire.ParseError(n)
+		return out, errDecode
 	}
 	o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{
 		Buf:     v,
@@ -420,7 +422,7 @@
 	}
 	b, n := protowire.ConsumeGroup(num, b)
 	if n < 0 {
-		return out, protowire.ParseError(n)
+		return out, errDecode
 	}
 	o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{
 		Buf:     b,
@@ -494,7 +496,7 @@
 	}
 	v, n := protowire.ConsumeBytes(b)
 	if n < 0 {
-		return out, protowire.ParseError(n)
+		return out, errDecode
 	}
 	m := reflect.New(f.mi.GoReflectType.Elem()).Interface()
 	mp := pointerOfIface(m)
@@ -550,7 +552,7 @@
 	}
 	v, n := protowire.ConsumeBytes(b)
 	if n < 0 {
-		return out, protowire.ParseError(n)
+		return out, errDecode
 	}
 	mp := reflect.New(goType.Elem())
 	o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{
@@ -613,7 +615,7 @@
 	}
 	v, n := protowire.ConsumeBytes(b)
 	if n < 0 {
-		return pref.Value{}, out, protowire.ParseError(n)
+		return pref.Value{}, out, errDecode
 	}
 	m := list.NewElement()
 	o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{
@@ -681,7 +683,7 @@
 	}
 	b, n := protowire.ConsumeGroup(num, b)
 	if n < 0 {
-		return pref.Value{}, out, protowire.ParseError(n)
+		return pref.Value{}, out, errDecode
 	}
 	m := list.NewElement()
 	o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{
@@ -767,7 +769,7 @@
 	}
 	b, n := protowire.ConsumeGroup(num, b)
 	if n < 0 {
-		return out, protowire.ParseError(n)
+		return out, errDecode
 	}
 	mp := reflect.New(goType.Elem())
 	o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{