Change gae to apache 2 license.

filter/featureBreaker/gi.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 (
         "time"
 
         "golang.org/x/net/context"
 
         "github.com/luci/gae/service/info"
 )
@@ skipping 60 matching lines @@
         return
 }
 
 // FilterGI installs a featureBreaker info filter in the context.
 func FilterGI(c context.Context, defaultError error) (context.Context, FeatureBreaker) {
         state := newState(defaultError)
         return info.AddFilters(c, func(ic context.Context, i info.Interface) info.Interface {
                 return &infoState{state, i}
         }), state
 }