[ios] TabCollectionItem

ios/showcase/tab_grid/sc_tab_grid_coordinator.mm

Index: ios/showcase/tab_grid/sc_tab_grid_coordinator.mm
diff --git a/ios/showcase/tab_grid/sc_tab_grid_coordinator.mm b/ios/showcase/tab_grid/sc_tab_grid_coordinator.mm
index a8afdfbcff81a3e92be92fee5fbbdd449476684d..48e438a3e5d5143c806ed9de0d3fb3a40bf1133a 100644
--- a/ios/showcase/tab_grid/sc_tab_grid_coordinator.mm
+++ b/ios/showcase/tab_grid/sc_tab_grid_coordinator.mm
@@ -8,7 +8,7 @@
 #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"
 
@@ -16,7 +16,7 @@
 #error "This file requires ARC support."
 #endif
 
-@interface SCTabGridCoordinator ()<TabCollectionDataSource>
+@interface SCTabGridCoordinator ()
 @property(nonatomic, strong) TabGridViewController* viewController;
 @property(nonatomic, strong) ProtocolAlerter* alerter;
 @end
@@ -35,27 +35,16 @@
 
   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