[Web Payments] Add data attribution string to dialog

components/payments/content/payment_request_state.cc

 // 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.
 
 #include "components/payments/content/payment_request_state.h"
 
 #include <algorithm>
 #include <set>
 #include <utility>
 
@@ skipping 70 matching lines @@
       return true;
     }
   }
   return false;
 }
 
 bool PaymentRequestState::AreRequestedMethodsSupported() const {
   return !spec_->supported_card_networks().empty();
 }
 
+std::string PaymentRequestState::GetAuthenticatedEmail() const {
+  return payment_request_delegate_->GetAuthenticatedEmail();
+}
+
 void PaymentRequestState::AddObserver(Observer* observer) {
   CHECK(observer);
   observers_.AddObserver(observer);
 }
 
 void PaymentRequestState::RemoveObserver(Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void PaymentRequestState::GeneratePaymentResponse() {
@@ skipping 173 matching lines @@
   if (is_waiting_for_merchant_validation_)
     return false;
 
   if (!profile_comparator()->IsShippingComplete(selected_shipping_profile_))
     return false;
 
   return profile_comparator()->IsContactInfoComplete(selected_contact_profile_);
 }
 
 }  // namespace payments