Change gae to apache 2 license.

service/datastore/meta/namespaces.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.
+// Copyright 2015 The LUCI Authors. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
 
 package meta
 
 import (
         "fmt"
         "strings"
 
         "github.com/luci/gae/service/datastore"
         "golang.org/x/net/context"
 )
@@ skipping 50 matching lines @@
 
 // NamespacesCollector exposes a NamespacesCallback function that aggregates
 // resulting namespaces into the collector slice.
 type NamespacesCollector []string
 
 // Callback is a NamespacesCallback which adds each namespace to the collector.
 func (c *NamespacesCollector) Callback(v string) error {
         *c = append(*c, v)
         return nil
 }