| Index: ios/chrome/browser/signin/signin_error_controller_factory.h
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| diff --git a/ios/chrome/browser/signin/signin_error_controller_factory.h b/ios/chrome/browser/signin/signin_error_controller_factory.h
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| index 04c6dc6173d80ad4347c176d2b89a1262b76372b..c0ae7191573ab0184006f70f165cb72571080590 100644
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| --- a/ios/chrome/browser/signin/signin_error_controller_factory.h
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| +++ b/ios/chrome/browser/signin/signin_error_controller_factory.h
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| @@ -9,8 +9,11 @@
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|  #include "base/memory/scoped_ptr.h"
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|  #include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
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|  
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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 SigninErrorController;
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|  
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|  namespace ios {
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| @@ -26,7 +29,7 @@ class SigninErrorControllerFactory : public BrowserStateKeyedServiceFactory {
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|    static SigninErrorControllerFactory* GetInstance();
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|  
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|   private:
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| -  friend struct DefaultSingletonTraits<SigninErrorControllerFactory>;
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| +  friend struct base::DefaultSingletonTraits<SigninErrorControllerFactory>;
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|  
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|    SigninErrorControllerFactory();
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|    ~SigninErrorControllerFactory() override;
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| 
 |