| Index: components/sync/engine_impl/loopback_server/loopback_server.cc
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| diff --git a/components/sync/engine_impl/loopback_server/loopback_server.cc b/components/sync/engine_impl/loopback_server/loopback_server.cc
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| index d04b301c05ac8658b2668f180d6226188c985a57..55ea0cd369c09a738f9bacd1b9797bc6cb50b821 100644
 | 
| --- a/components/sync/engine_impl/loopback_server/loopback_server.cc
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| +++ b/components/sync/engine_impl/loopback_server/loopback_server.cc
 | 
| @@ -101,7 +101,7 @@ class UpdateSieve {
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|    int64_t GetMinVersion() const { return min_version_; }
 | 
|  
 | 
|   private:
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| -  typedef std::map<ModelType, int64_t> ModelTypeToVersionMap;
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| +  using ModelTypeToVersionMap = std::map<ModelType, int64_t>;
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|  
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|    // Creates an UpdateSieve.
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|    UpdateSieve(const ModelTypeToVersionMap request_from_version,
 | 
| 
 |