Revert of Replace TabModel with WebStateList in GoogleLandingController.

ios/chrome/browser/ui/ntp/new_tab_page_controller.mm

 // Copyright 2012 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/chrome/browser/ui/ntp/new_tab_page_controller.h"
 
 #import <QuartzCore/QuartzCore.h>
 
 #import "base/ios/weak_nsobject.h"
 #include "base/logging.h"
@@ skipping 525 matching lines @@
     [bookmarkController_ setDelegate:self];
   } else if (item.identifier == NewTabPage::kMostVisitedPanel) {
     if (!googleLandingController_) {
       googleLandingController_.reset([[GoogleLandingController alloc] init]);
       googleLandingMediator_.reset([[GoogleLandingMediator alloc]
             initWithConsumer:googleLandingController_
                 browserState:browserState_
                       loader:loader_
                      focuser:focuser_
           webToolbarDelegate:webToolbarDelegate_
-                webStateList:[tabModel_ webStateList]]);
+                    tabModel:tabModel_]);
       [googleLandingController_ setDataSource:googleLandingMediator_];
     }
     panelController = googleLandingController_;
     view = [googleLandingController_ view];
     [googleLandingController_ setDelegate:self];
   } else if (item.identifier == NewTabPage::kOpenTabsPanel) {
     if (!openTabsController_)
       openTabsController_.reset([[RecentTabsPanelController alloc]
           initWithLoader:loader_
             browserState:browserState_]);
@@ skipping 174 matching lines @@
 
 - (void)updateNtpBarShadowForPanelController:
     (id<NewTabPagePanelProtocol>)ntpPanelController {
   if (currentController_ != ntpPanelController)
     return;
   [self.ntpView.tabBar
       setShadowAlpha:[ntpPanelController alphaForBottomShadow]];
 }
 
 @end