Upstream Chrome on iOS source code [7/11].

ios/chrome/browser/ui/settings/import_data_collection_view_controller.h

+// Copyright 2015 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_SETTINGS_IMPORT_DATA_COLLECTION_VIEW_CONTROLLER_H_
+#define IOS_CHROME_BROWSER_UI_SETTINGS_IMPORT_DATA_COLLECTION_VIEW_CONTROLLER_H_
+
+#include "ios/chrome/browser/signin/constants.h"
+#import "ios/chrome/browser/ui/settings/settings_root_collection_view_controller.h"
+
+@class ImportDataCollectionViewController;
+
+// The accessibility identifier of the Import Data cell.
+extern NSString* const kImportDataImportCellId;
+
+// The accessibility identifier of the Keep Data Separate cell.
+extern NSString* const kImportDataKeepSeparateCellId;
+
+// Notifies of the user action on the corresponding
+// ImportDataCollectionViewController.
+@protocol ImportDataControllerDelegate
+
+// Indicates that the user chose the clear data policy to be |shouldClearData|
+// when presented with |controller|.
+- (void)didChooseClearDataPolicy:(ImportDataCollectionViewController*)controller
+                 shouldClearData:(ShouldClearData)shouldClearData;
+
+@end
+
+// Collection View that handles how to import data during account switching.
+@interface ImportDataCollectionViewController
+    : SettingsRootCollectionViewController
+
+// |fromEmail| is the email of the previously signed in account.
+// |toIdentity| is the email of the account switched to.
+// |isSignedIn| is whether the user is currently signed in.
+//
+// |fromEmail| and |toEmail| must not be NULL.
+- (instancetype)initWithDelegate:(id<ImportDataControllerDelegate>)delegate
+                       fromEmail:(NSString*)fromEmail
+                         toEmail:(NSString*)toEmail
+                      isSignedIn:(BOOL)isSignedIn NS_DESIGNATED_INITIALIZER;
+
+- (instancetype)initWithStyle:(CollectionViewControllerStyle)style
+    NS_UNAVAILABLE;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_SETTINGS_IMPORT_DATA_COLLECTION_VIEW_CONTROLLER_H_