[Payment Request] Refactors PaymentRequestCoordinator.

ios/chrome/browser/ui/payments/payment_request_view_controller.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/chrome/browser/ui/payments/payment_request_view_controller.h"
 
 #include "base/mac/foundation_util.h"
 
 #include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 109 matching lines @@
 
 @end
 
 @implementation PaymentRequestViewController
 
 @synthesize pageFavicon = _pageFavicon;
 @synthesize pageTitle = _pageTitle;
 @synthesize pageHost = _pageHost;
 @synthesize pending = _pending;
 @synthesize delegate = _delegate;
-@synthesize showDataSource = _showDataSource;
-@synthesize authenticatedAccountName = _authenticatedAccountName;
+@synthesize showPaymentDataSource = _showPaymentDataSource;
+@synthesize dataSource = _dataSource;
 
 - (instancetype)initWithPaymentRequest:(PaymentRequest*)paymentRequest {
   DCHECK(paymentRequest);
   if ((self = [super initWithStyle:CollectionViewControllerStyleAppBar])) {
     [self setTitle:l10n_util::GetNSString(IDS_PAYMENTS_TITLE)];
 
     // Set up leading (cancel) button.
     _cancelButton = [[UIBarButtonItem alloc]
         initWithTitle:l10n_util::GetNSString(IDS_CANCEL)
                 style:UIBarButtonItemStylePlain
@@ skipping 37 matching lines @@
         [_payButton frame].size.width + kButtonEdgeInset;
     buttonView.bounds = buttonViewBounds;
 
     UIBarButtonItem* payButtonItem =
         [[UIBarButtonItem alloc] initWithCustomView:buttonView];
     [self navigationItem].rightBarButtonItem = payButtonItem;
 
     _paymentRequest = paymentRequest;
 
     // By default, data source is shown.
-    _showDataSource = TRUE;
+    _showPaymentDataSource = TRUE;
   }
   return self;
 }
 
 - (void)onCancel {
   [_delegate paymentRequestViewControllerDidCancel:self];
 }
 
 - (void)onConfirm {
   [_delegate paymentRequestViewControllerDidConfirm:self];
@@ skipping 166 matching lines @@
         uppercaseStringWithLocale:[NSLocale currentLocale]];
     addContactInfoItem.accessibilityTraits |= UIAccessibilityTraitButton;
   }
   [model addItem:contactInfoItem
       toSectionWithIdentifier:SectionIdentifierContactInfo];
 
   // Footer Text section.
   [model addSectionWithIdentifier:SectionIdentifierFooter];
   CollectionViewFooterItem* footer =
       [[CollectionViewFooterItem alloc] initWithType:ItemTypeFooterText];
-  if (!_showDataSource) {
+  if (!_showPaymentDataSource) {
     footer.text =
         l10n_util::GetNSString(IDS_PAYMENTS_CARD_AND_ADDRESS_SETTINGS);
-  } else if ([_authenticatedAccountName length]) {
+  } else if ([[_dataSource authenticatedAccountName] length]) {
     const std::string unformattedString = l10n_util::GetStringUTF8(
         IDS_PAYMENTS_CARD_AND_ADDRESS_SETTINGS_SIGNED_IN);
     const std::string accountName =
-        base::SysNSStringToUTF8(_authenticatedAccountName);
+        base::SysNSStringToUTF8([_dataSource authenticatedAccountName]);
     const std::string formattedString =
         base::StringPrintf(unformattedString.c_str(), accountName.c_str());
     footer.text = base::SysUTF8ToNSString(formattedString);
   } else {
     footer.text = l10n_util::GetNSString(
         IDS_PAYMENTS_CARD_AND_ADDRESS_SETTINGS_SIGNED_OUT);
   }
   footer.linkURL = GURL(kSettingsURL);
   footer.linkDelegate = self;
   [model addItem:footer toSectionWithIdentifier:SectionIdentifierFooter];
@@ skipping 227 matching lines @@
 
 - (BOOL)collectionView:(UICollectionView*)collectionView
     shouldHideItemBackgroundAtIndexPath:(NSIndexPath*)indexPath {
   // No background on the footer text item.
   NSInteger sectionIdentifier =
       [self.collectionViewModel sectionIdentifierForSection:indexPath.section];
   return sectionIdentifier == SectionIdentifierFooter ? YES : NO;
 }
 
 @end