Change gae to apache 2 license.

service/taskqueue/taskqueue.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 taskqueue
 
 import (
         "github.com/luci/luci-go/common/errors"
 )
 
 type taskqueueImpl struct{ RawInterface }
 
 func (t *taskqueueImpl) Add(task *Task, queueName string) error {
@@ skipping 54 matching lines @@
 
 func (t *taskqueueImpl) Raw() RawInterface {
         return t.RawInterface
 }
 
 func (t *taskqueueImpl) Testable() Testable {
         return t.RawInterface.Testable()
 }
 
 var _ Interface = (*taskqueueImpl)(nil)