Move ContentSuggestions identifiers to custom target

ios/chrome/browser/ui/content_suggestions/content_suggestions_section_information.h

-// 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_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_SECTION_INFORMATION_H_
-#define IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_SECTION_INFORMATION_H_
-
-#import <Foundation/Foundation.h>
-
-#import "ios/chrome/browser/ui/collection_view/cells/collection_view_item.h"
-
-// Layout for the section and its items.
-typedef NS_ENUM(NSInteger, ContentSuggestionsSectionLayout) {
-  // Follows the card layout.
-  ContentSuggestionsSectionLayoutCard,
-  // No specific layout.
-  ContentSuggestionsSectionLayoutCustom,
-};
-
-// This enum is used for ordering the sections and as ID for the section. Make
-// all sections in the same collection have different ID.
-// When adding a new kind of suggestions, add a new corresponding section. The
-// ordering is not persisted between launch, reordering is possible.
-typedef NS_ENUM(NSInteger, ContentSuggestionsSectionID) {
-  ContentSuggestionsSectionBookmarks = 0,
-  ContentSuggestionsSectionArticles = 1,
-
-  // Do not use this. It will trigger a DCHECK.
-  // Do not add value after this one.
-  ContentSuggestionsSectionUnknown
-};
-
-// Contains the information needed to display the section.
-@interface ContentSuggestionsSectionInformation : NSObject
-
-- (instancetype)initWithSectionID:(ContentSuggestionsSectionID)sectionID
-    NS_DESIGNATED_INITIALIZER;
-- (instancetype)init NS_UNAVAILABLE;
-
-// Item to display when the section is empty. If nil the section should not be
-// displayed when empty.
-@property(nonatomic, strong) CollectionViewItem* emptyCell;
-// Layout to display the content of the section.
-@property(nonatomic, assign) ContentSuggestionsSectionLayout layout;
-// ID of the section. Used for ordering.
-@property(nonatomic, assign, readonly) ContentSuggestionsSectionID sectionID;
-// Title for the section.
-@property(nonatomic, copy) NSString* title;
-// Title of the section's footer. If it is nil, no footer is created.
-@property(nonatomic, copy) NSString* footerTitle;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_SECTION_INFORMATION_H_