Change gae to apache 2 license.

impl/memory/gkvlite_tracing_utils.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 memory
 
 import (
         "encoding/hex"
         "flag"
         "fmt"
         "io/ioutil"
         "os"
         "path/filepath"
@@ skipping 175 matching lines @@
         t.visitNumber++
 
         t.w(".VisitItemsAscend(%#v, %t, func(i *gkvlite.Item) bool{ return true }) // BEGIN VisitItemsAscend(%d)", target, withValue, vnum)
         defer t.w("// END VisitItemsAscend(%d)", vnum)
         t.i.VisitItemsAscend(target, withValue, visitor)
 }
 
 func (t *tracingMemCollectionImpl) IsReadOnly() bool {
         return t.i.IsReadOnly()
 }