Adding mediator for Sign-in promo

ios/chrome/browser/ui/authentication/signin_promo_view_mediator.h

Index: ios/chrome/browser/ui/authentication/signin_promo_view_mediator.h
diff --git a/ios/chrome/browser/ui/authentication/signin_promo_view_mediator.h b/ios/chrome/browser/ui/authentication/signin_promo_view_mediator.h
new file mode 100644
index 0000000000000000000000000000000000000000..7e5d809ebb911e185a3bda1b7abb03c2f5eacfe5
--- /dev/null
+++ b/ios/chrome/browser/ui/authentication/signin_promo_view_mediator.h
@@ -0,0 +1,23 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef IOS_CHROME_BROWSER_UI_AUTHENTICATION_SIGNIN_PROMO_VIEW_MEDIATOR_H_
+#define IOS_CHROME_BROWSER_UI_AUTHENTICATION_SIGNIN_PROMO_VIEW_MEDIATOR_H_
+
+#import <Foundation/Foundation.h>
+
+#import "ios/chrome/browser/ui/authentication/signin_promo_view.h"
+
+// Class that configures a SigninPromoView instance. This class is a simple
+// implementation that only stores data.
+// Create a subclass that monitors profile notification.
+@interface SigninPromoViewMediator : NSObject<SigninPromoViewConfigurator>
+
+@property(nonatomic, copy) NSString* userFullName;
+@property(nonatomic, copy) NSString* userEmail;
+@property(nonatomic, copy) UIImage* userImage;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_AUTHENTICATION_SIGNIN_PROMO_VIEW_MEDIATOR_H_