Change gae to apache 2 license.

filter/featureBreaker/featurebreaker.go

Index: filter/featureBreaker/featurebreaker.go
diff --git a/filter/featureBreaker/featurebreaker.go b/filter/featureBreaker/featurebreaker.go
index 3808209f6eba8885ceefafb9408d17865e51e015..d618f4cdb94448b90503da12ee9b582fb76a6f00 100644
--- a/filter/featureBreaker/featurebreaker.go
+++ b/filter/featureBreaker/featurebreaker.go
@@ -1,6 +1,6 @@
-// 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