VOL-4028: Add support for ANI-G Test Response and Result

Change-Id: Iae61554c426937a4ce5e78a0499195f6c3975b78
diff --git a/vendor/golang.org/x/net/http2/http2.go b/vendor/golang.org/x/net/http2/http2.go
index 27cc893..bdaba1d 100644
--- a/vendor/golang.org/x/net/http2/http2.go
+++ b/vendor/golang.org/x/net/http2/http2.go
@@ -19,6 +19,7 @@
 import (
 	"bufio"
 	"crypto/tls"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -172,6 +173,11 @@
 	return fmt.Sprintf("UNKNOWN_SETTING_%d", uint16(s))
 }
 
+var (
+	errInvalidHeaderFieldName  = errors.New("http2: invalid header field name")
+	errInvalidHeaderFieldValue = errors.New("http2: invalid header field value")
+)
+
 // validWireHeaderFieldName reports whether v is a valid header field
 // name (key). See httpguts.ValidHeaderName for the base rules.
 //