Change gae to apache 2 license.

impl/memory/gkvlite_iter.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 memory
 
 import (
         "bytes"
         "sync"
 
         "github.com/luci/gae/service/datastore/serialize"
         "github.com/luci/gkvlite"
 )
@@ skipping 197 matching lines @@
         t.ch <- &cmd{targ, func(i *gkvlite.Item) {
                 defer close(waiter)
 
                 if i == nil {
                         t.stop()
                 }
                 cb(i)
         }}
         <-waiter
 }