Change gae to apache 2 license.

impl/prod/raw_datastore.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 prod
 
 import (
         ds "github.com/luci/gae/service/datastore"
         "github.com/luci/luci-go/common/errors"
         "golang.org/x/net/context"
         "google.golang.org/appengine/datastore"
 )
 
@@ skipping 216 matching lines @@
 func (d rdsImpl) RunInTransaction(f func(c context.Context) error, opts *ds.TransactionOptions) error {
         ropts := (*datastore.TransactionOptions)(opts)
         return datastore.RunInTransaction(d.aeCtx, func(c context.Context) error {
                 return f(context.WithValue(d.userCtx, prodContextKey, c))
         }, ropts)
 }
 
 func (d rdsImpl) Testable() ds.Testable {
         return nil
 }