[Payment Request] Country selection coordinator

ios/chrome/browser/ui/payments/payment_request_picker_view_controller.mm

 // Copyright 2017 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/payments/payment_request_picker_view_controller.h"
 
 #import "base/logging.h"
 #import "base/mac/foundation_util.h"
 #import "ios/chrome/browser/ui/payments/payment_request_picker_row.h"
 
@@ skipping 67 matching lines @@
   [super viewDidLoad];
 
   self.tableView.rowHeight = 48.0f;  // The same as MDCCellDefaultOneLineHeight.
   self.tableView.accessibilityIdentifier =
       kPaymentRequestPickerViewControllerAccessibilityID;
 
   self.searchController =
       [[UISearchController alloc] initWithSearchResultsController:nil];
   self.searchController.searchResultsUpdater = self;
   self.searchController.dimsBackgroundDuringPresentation = NO;
+  self.searchController.hidesNavigationBarDuringPresentation = NO;
   self.searchController.searchBar.accessibilityIdentifier =
       kPaymentRequestPickerSearchBarAccessibilityID;
   self.tableView.tableHeaderView = self.searchController.searchBar;
 
   // Presentation of searchController will walk up the view controller hierarchy
   // until it finds the root view controller or one that defines a presentation
   // context. Make this class the presentation context so that the search
   // controller does not present on top of the navigation controller.
   self.definesPresentationContext = YES;
 }
@@ skipping 144 matching lines @@
 // title for a row is the capitalized first letter of the label for that row.
 - (NSString*)sectionTitleForRow:(PickerRow*)row {
   return [[row.label substringToIndex:1] uppercaseString];
 }
 
 - (NSString*)description {
   return kPaymentRequestPickerViewControllerAccessibilityID;
 }
 
 @end