Change gae to apache 2 license.

service/memcache/interface.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
 
 // Interface is the full interface to the memcache service.
 //
 // The *Multi methods may return a "github.com/luci/luci-go/common/errors".MultiError
 // if the rpc to the server was successful, but, e.g. some of the items were
 // missing. They may also return a regular error, if, for example, the rpc
 // failed outright.
 type Interface interface {
@@ skipping 52 matching lines @@
         IncrementExisting(key string, delta int64) (newValue uint64, err error)
 
         // Flush dumps the entire memcache state.
         Flush() error
 
         // Stats gets some best-effort statistics about the current state of memcache.
         Stats() (*Statistics, error)
 
         Raw() RawInterface
 }