Cleanup: IWYU for base/gtest_prod_util.h.

sync/internal_api/public/write_node.h

 // Copyright 2012 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.
 
 #ifndef SYNC_INTERNAL_API_PUBLIC_WRITE_NODE_H_
 #define SYNC_INTERNAL_API_PUBLIC_WRITE_NODE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/gtest_prod_util.h"
 #include "sync/base/sync_export.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/base_node.h"
 
 namespace sync_pb {
 class BookmarkSpecifics;
 class EntitySpecifics;
 class NigoriSpecifics;
 class PasswordSpecificsData;
 class TypedUrlSpecifics;
@@ skipping 145 matching lines @@
 
   // The sync API transaction that is the parent of this node.
   WriteTransaction* transaction_;
 
   DISALLOW_COPY_AND_ASSIGN(WriteNode);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_WRITE_NODE_H_