Implementing sign-in promo histograms for bookmark

ios/chrome/browser/ui/ntp/recent_tabs/recent_tabs_table_view_controller.mm

 // Copyright 2014 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/recent_tabs/recent_tabs_table_view_controller.h"
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/metrics/user_metrics.h"
@@ skipping 804 matching lines @@
       subview = [[SignedInSyncOffView alloc] initWithFrame:CGRectZero
                                               browserState:_browserState];
       [cell setSelectionStyle:UITableViewCellSelectionStyleNone];
       break;
     case CELL_OTHER_DEVICES_SIGNED_IN_SYNC_ON_NO_SESSIONS:
       subview = [[SignedInSyncOnNoSessionsView alloc] initWithFrame:CGRectZero];
       [cell setSelectionStyle:UITableViewCellSelectionStyleNone];
       break;
     case CELL_OTHER_DEVICES_SIGNIN_PROMO: {
       if (!_signinPromoViewMediator) {
-        _signinPromoViewMediator = [[SigninPromoViewMediator alloc] init];
+        _signinPromoViewMediator = [[SigninPromoViewMediator alloc]
+            initWithBrowserState:_browserState];
         _signinPromoViewMediator.consumer = self;
         _signinPromoViewMediator.accessPoint =
             signin_metrics::AccessPoint::ACCESS_POINT_RECENT_TABS;
       }
       contentViewTopMargin = kSigninPromoViewTopMargin;
       SigninPromoView* signinPromoView =
           [[SigninPromoView alloc] initWithFrame:CGRectZero];
       signinPromoView.delegate = _signinPromoViewMediator;
       signinPromoView.textLabel.text =
           l10n_util::GetNSString(IDS_IOS_SIGNIN_PROMO_RECENT_TABS);
@@ skipping 195 matching lines @@
   UITableViewCell* cell = [self.tableView cellForRowAtIndexPath:indexPath];
   NSArray<UIView*>* contentViews = cell.contentView.subviews;
   DCHECK(contentViews.count == 1);
   UIView* subview = contentViews[0];
   DCHECK([subview isKindOfClass:[SigninPromoView class]]);
   SigninPromoView* signinPromoView = (SigninPromoView*)subview;
   [configurator configureSigninPromoView:signinPromoView];
 }
 
 @end