| Index: chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.h
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| diff --git a/chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.h b/chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.h
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| index 4c85d4fe6c47c33aa3e27eddcc102e41b2dab285..df0c0db55892f1223ee8d29af96e738dd9a8f960 100644
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| --- a/chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.h
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| +++ b/chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.h
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| @@ -14,7 +14,11 @@ namespace content {
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|  class BrowserContext;
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|  }
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|  
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| -template <typename T> struct DefaultSingletonTraits;
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| +namespace base {
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| +template <typename T>
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| +struct DefaultSingletonTraits;
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| +}  // namespace base
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| +
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|  class EasyUnlockTpmKeyManager;
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|  
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|  // Singleton factory that builds and owns all EasyUnlockTpmKeyManager services.
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| @@ -27,7 +31,7 @@ class EasyUnlockTpmKeyManagerFactory
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|    static EasyUnlockTpmKeyManager* GetForUser(const std::string& user_id);
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|  
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|   private:
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| -  friend struct DefaultSingletonTraits<EasyUnlockTpmKeyManagerFactory>;
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| +  friend struct base::DefaultSingletonTraits<EasyUnlockTpmKeyManagerFactory>;
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|  
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|    EasyUnlockTpmKeyManagerFactory();
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|    ~EasyUnlockTpmKeyManagerFactory() override;
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| 
 |