| Index: base/prefs/public/pref_service_base.h
 | 
| diff --git a/base/prefs/public/pref_service_base.h b/base/prefs/public/pref_service_base.h
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| index aa5b3fd823da28b7fae8a28f047ac319c422bd28..75797d54edd8bb1f67cdee74e49b832e81e9ac3f 100644
 | 
| --- a/base/prefs/public/pref_service_base.h
 | 
| +++ b/base/prefs/public/pref_service_base.h
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| @@ -161,6 +161,9 @@ class PrefServiceBase {
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|    virtual void RegisterStringPref(const char* path,
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|                                    const std::string& default_value,
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|                                    PrefSyncStatus sync_status) = 0;
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| +  virtual void RegisterStringPrefIfNew(const char* path,
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| +                                       const std::string& default_value,
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| +                                       PrefSyncStatus sync_status) = 0;
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|    virtual void RegisterFilePathPref(const char* path,
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|                                      const FilePath& default_value,
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|                                      PrefSyncStatus sync_status) = 0;
 | 
| 
 |