vendor: Update vendoring for the exec client and server implementations

Signed-off-by: Jacek J. Łakis <jacek.lakis@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

vendor/google.golang.org/appengine/user/user_vm.go

@@ -0,0 +1,38 @@
+// Copyright 2014 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// +build !appengine
+
+package user
+
+import (
+	"golang.org/x/net/context"
+
+	"google.golang.org/appengine/internal"
+)
+
+// Current returns the currently logged-in user,
+// or nil if the user is not signed in.
+func Current(c context.Context) *User {
+	h := internal.IncomingHeaders(c)
+	u := &User{
+		Email:             h.Get("X-AppEngine-User-Email"),
+		AuthDomain:        h.Get("X-AppEngine-Auth-Domain"),
+		ID:                h.Get("X-AppEngine-User-Id"),
+		Admin:             h.Get("X-AppEngine-User-Is-Admin") == "1",
+		FederatedIdentity: h.Get("X-AppEngine-Federated-Identity"),
+		FederatedProvider: h.Get("X-AppEngine-Federated-Provider"),
+	}
+	if u.Email == "" && u.FederatedIdentity == "" {
+		return nil
+	}
+	return u
+}
+
+// IsAdmin returns true if the current user is signed in and
+// is currently registered as an administrator of the application.
+func IsAdmin(c context.Context) bool {
+	h := internal.IncomingHeaders(c)
+	return h.Get("X-AppEngine-User-Is-Admin") == "1"
+}