Some miscellaneous fixes:

go/src/infra/gae/libs/gae/memory/globalinfo.go

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package memory
 
 import (
         "golang.org/x/net/context"
 
         "infra/gae/libs/gae"
@@ skipping 15 matching lines @@
                 return &giImpl{dummy.GI(), curGID(ic), ic}
         })
 }
 
 // globalAppID is the 'AppID' of everythin returned from this memory
 // implementation (DSKeys, GlobalInfo, etc.). There's no way to modify this
 // value through the API, and there are a couple bits of code where it's hard to
 // route this value through to without making the internal APIs really complex.
 const globalAppID = "dev~app"
 
-type globalInfoData struct{ namespace string }
+type globalInfoData struct {
+        gae.BrokenFeatures
+
+        namespace string
+}
 
 type giImpl struct {
         gae.GlobalInfo
-        data *globalInfoData
-        c    context.Context
+        *globalInfoData
+        c context.Context
 }
 
 var _ = gae.GlobalInfo((*giImpl)(nil))
 
-func (gi *giImpl) Namespace(ns string) (context.Context, error) {
-        return context.WithValue(gi.c, giContextKey, &globalInfoData{ns}), nil
+func (gi *giImpl) Namespace(ns string) (ret context.Context, err error) {
+        err = gi.RunIfNotBroken(func() error {
+                ret = context.WithValue(gi.c, giContextKey, &globalInfoData{
+                        curGID(gi.c).BrokenFeatures,
+                        ns,
+                })
+                return nil
+        })
+        return
 }
 
 func (gi *giImpl) AppID() string {
         return globalAppID
 }