| Index: components/sync/model/attachments/attachment.h
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| diff --git a/components/sync/model/attachments/attachment.h b/components/sync/model/attachments/attachment.h
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| index 9e71d68df30a5ce1e0d9098d7c821f2b0043b17e..f59aee1b92790dd97e679dd2f0b5cf7c74fe2d12 100644
 | 
| --- a/components/sync/model/attachments/attachment.h
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| +++ b/components/sync/model/attachments/attachment.h
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| @@ -63,8 +63,8 @@ class Attachment {
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|               const scoped_refptr<base::RefCountedMemory>& data);
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|  };
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|  
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| -typedef std::vector<Attachment> AttachmentList;
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| -typedef std::map<AttachmentId, Attachment> AttachmentMap;
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| +using AttachmentList = std::vector<Attachment>;
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| +using AttachmentMap = std::map<AttachmentId, Attachment>;
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|  
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|  }  // namespace syncer
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|  
 | 
| 
 |