Change gae to apache 2 license.

service/info/interface.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 info
 
 import (
         "time"
 
         "golang.org/x/net/context"
 )
 
 // Interface is the interface for all of the package methods which normally
@@ skipping 26 matching lines @@
         // Testable returns this Interface's Testable interface. Testing will return
         // nil if testing is not supported in this implementation.
         Testable() Testable
 }
 
 // Testable is an additional set of functions for testing instrumentation.
 type Testable interface {
         SetVersionID(string) context.Context
         SetRequestID(string) context.Context
 }