Upstream Chrome on iOS source code [3/11].

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

+// Copyright 2014 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_AUTHENTICATION_FLOW_PERFORMER_H_
+#define IOS_CHROME_BROWSER_UI_AUTHENTICATION_AUTHENTICATION_FLOW_PERFORMER_H_
+
+#include <string>
+
+#import <UIKit/UIKit.h>
+
+#import "base/ios/block_types.h"
+#import "ios/chrome/browser/ui/authentication/authentication_flow_performer_delegate.h"
+
+@class ChromeIdentity;
+
+namespace ios {
+class ChromeBrowserState;
+}  // namespace ios
+
+// Performs the sign-in steps and user interactions as part of the sign-in flow.
+@interface AuthenticationFlowPerformer : NSObject
+
+// Initializes a new AuthenticationFlowPerformer. |delegate| will be notified
+// when each step completes.
+- (instancetype)initWithDelegate:
+    (id<AuthenticationFlowPerformerDelegate>)delegate NS_DESIGNATED_INITIALIZER;
+
+- (instancetype)init NS_UNAVAILABLE;
+
+// Cancels any outstanding work and dismisses an alert view (if shown).
+- (void)cancelAndDismiss;
+
+// Starts sync for |browserState|.
+- (void)commitSyncForBrowserState:(ios::ChromeBrowserState*)browserState;
+
+// Fetches the managed status for |identity|.
+- (void)fetchManagedStatus:(ios::ChromeBrowserState*)browserState
+               forIdentity:(ChromeIdentity*)identity;
+
+// Signs |identity| with |hostedDomain| into |browserState|.
+- (void)signInIdentity:(ChromeIdentity*)identity
+      withHostedDomain:(NSString*)hostedDomain
+        toBrowserState:(ios::ChromeBrowserState*)browserState;
+
+// Signs out of |browserState| and sends |didSignOut| to the delegate when
+// complete.
+- (void)signOutBrowserState:(ios::ChromeBrowserState*)browserState;
+
+// Immediately signs out |browserState| without waiting for dependent services.
+- (void)signOutImmediatelyFromBrowserState:
+    (ios::ChromeBrowserState*)browserState;
+
+// Asks the user whether to clear or merge their previous identity's data with
+// that of |identity| or cancel sign-in, sending |didChooseClearDataPolicy:|
+// or |didChooseCancel| to the delegate when complete according to the user
+// action.
+- (void)promptMergeCaseForIdentity:(ChromeIdentity*)identity
+                      browserState:(ios::ChromeBrowserState*)browserState
+                    viewController:(UIViewController*)viewController;
+
+// Clears browsing data from |browserState| and sends |didClearData| to the
+// delegate when complete.
+- (void)clearData:(ios::ChromeBrowserState*)browserState;
+
+// Determines whether the user must decide what to do with |identity|'s browsing
+// data before signing into |browserState|.
+- (BOOL)shouldHandleMergeCaseForIdentity:(ChromeIdentity*)identity
+                            browserState:(ios::ChromeBrowserState*)browserState;
+
+// Shows a confirmation dialog for signing in to an account managed by
+// |hostedDomain|.
+- (void)showManagedConfirmationForHostedDomain:(NSString*)hostedDomain
+                                viewController:
+                                    (UIViewController*)viewController;
+
+// Shows |error| to the user and calls |callback| on dismiss.
+- (void)showAuthenticationError:(NSError*)error
+                 withCompletion:(ProceduralBlock)callback
+                 viewController:(UIViewController*)viewController;
+
+@property(nonatomic, weak, readonly) id<AuthenticationFlowPerformerDelegate>
+    delegate;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_AUTHENTICATION_AUTHENTICATION_FLOW_PERFORMER_H_