Change gae to apache 2 license.

service/memcache/types.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 memcache
 
 import (
         "time"
 )
 
 // Statistics represents a set of statistics about the memcache cache.  This
 // may include items that have expired but have not yet been removed from the
 // cache.
@@ skipping 22 matching lines @@
         SetKey(string) Item
         SetValue([]byte) Item
         SetFlags(uint32) Item
         SetExpiration(time.Duration) Item
 
         // SetAll copies all the values from other, except Key, into this item
         // (including the hidden CasID field). If other is nil, then all non-Key
         // fields are reset.
         SetAll(other Item)
 }