[ios] TabCollectionItem

ios/clean/chrome/browser/ui/tab_grid/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/clean/chrome/browser/ui/tab_grid/tab_grid_coordinator.h"
 
 #include <memory>
 
 #include "base/strings/sys_string_conversions.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
@@ skipping 45 matching lines @@
 
 - (void)start {
   self.mediator = [[TabGridMediator alloc] init];
   self.mediator.webStateList = &self.webStateList;
 
   [self registerForSettingsCommands];
   [self registerForTabGridCommands];
   [self registerForToolsMenuCommands];
 
   self.viewController = [[TabGridViewController alloc] init];
-  self.viewController.dataSource = self.mediator;
   self.viewController.dispatcher = static_cast<id>(self.browser->dispatcher());
 
   self.mediator.consumer = self.viewController;
 
   [super start];
 }
 
 - (void)stop {
   [super stop];
   [self.browser->dispatcher() stopDispatchingToTarget:self];
@@ skipping 148 matching lines @@
 }
 
 - (void)deRegisterFromToolsMenuCommands {
   [self.browser->dispatcher()
       stopDispatchingForSelector:@selector(showToolsMenu)];
   [self.browser->dispatcher()
       stopDispatchingForSelector:@selector(closeToolsMenu)];
 }
 
 @end