[ios] TabCollectionItem

ios/showcase/tab_grid/sc_tab_grid_coordinator.mm

 // Copyright 2016 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.
 
 #import "ios/showcase/tab_grid/sc_tab_grid_coordinator.h"
 
 #import "base/format_macros.h"
 #import "ios/clean/chrome/browser/ui/commands/settings_commands.h"
 #import "ios/clean/chrome/browser/ui/commands/tab_grid_commands.h"
 #import "ios/clean/chrome/browser/ui/commands/tools_menu_commands.h"
-#import "ios/clean/chrome/browser/ui/tab_collection/tab_collection_data_source.h"
+#import "ios/clean/chrome/browser/ui/tab_collection/tab_collection_consumer.h"
 #import "ios/clean/chrome/browser/ui/tab_grid/tab_grid_view_controller.h"
 #import "ios/showcase/common/protocol_alerter.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
-@interface SCTabGridCoordinator ()<TabCollectionDataSource>
+@interface SCTabGridCoordinator ()
 @property(nonatomic, strong) TabGridViewController* viewController;
 @property(nonatomic, strong) ProtocolAlerter* alerter;
 @end
 
 @implementation SCTabGridCoordinator
 @synthesize baseViewController = _baseViewController;
 @synthesize viewController = _viewController;
 @synthesize alerter = _alerter;
 
 - (void)start {
   self.alerter = [[ProtocolAlerter alloc] initWithProtocols:@[
     @protocol(SettingsCommands), @protocol(TabGridCommands),
     @protocol(ToolsMenuCommands)
   ]];
   self.alerter.baseViewController = self.baseViewController;
 
   self.viewController = [[TabGridViewController alloc] init];
   self.viewController.title = @"Tab Grid";
-  self.viewController.dataSource = self;
   self.viewController.dispatcher =
       static_cast<id<SettingsCommands, TabGridCommands, ToolsMenuCommands>>(
           self.alerter);
 
+  TabCollectionItem* item0 = [[TabCollectionItem alloc] init];
+  item0.title = @"Tab 0";
+  [self.viewController initializeItems:@[ item0 ]];
+
   [self.baseViewController setHidesBarsOnSwipe:YES];
   [self.baseViewController pushViewController:self.viewController animated:YES];
 }
 
-#pragma mark - TabCollectionDataSource
-
-- (int)numberOfTabs {
-  return 3;
-}
-
-- (NSString*)titleAtIndex:(int)index {
-  return [NSString stringWithFormat:@"Tab %d", index];
-}
-
-- (int)indexOfActiveTab {
-  return kTabCollectionDataSourceInvalidIndex;
-}
-
 @end