Change gae to apache 2 license.

filter/featureBreaker/mc.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 featureBreaker
 
 import (
         "golang.org/x/net/context"
 
         mc "github.com/luci/gae/service/memcache"
 )
 
 type mcState struct {
@@ skipping 34 matching lines @@
         return
 }
 
 // FilterMC installs a featureBreaker mc filter in the context.
 func FilterMC(c context.Context, defaultError error) (context.Context, FeatureBreaker) {
         state := newState(defaultError)
         return mc.AddRawFilters(c, func(ic context.Context, rds mc.RawInterface) mc.RawInterface {
                 return &mcState{state, rds}
         }), state
 }