[Payments] base::string16 -> std::string in PaymentMethodData

components/payments/core/payment_method_data.h

Index: components/payments/core/payment_method_data.h
diff --git a/components/payments/core/payment_method_data.h b/components/payments/core/payment_method_data.h
index 5993de3445509506c90c65e9575e60e6613f074b..5bc7241db272c29a020ffc971e1529944b619a1b 100644
--- a/components/payments/core/payment_method_data.h
+++ b/components/payments/core/payment_method_data.h
@@ -6,10 +6,9 @@
 #define COMPONENTS_PAYMENTS_CORE_PAYMENT_METHOD_DATA_H_
 
 #include <memory>
+#include <string>
 #include <vector>
 
-#include "base/strings/string16.h"
-
 namespace base {
 class DictionaryValue;
 }
@@ -33,16 +32,16 @@ class PaymentMethodData {
 
   // Payment method identifiers for payment methods that the merchant web site
   // accepts.
-  std::vector<base::string16> supported_methods;
+  std::vector<std::string> supported_methods;
 
   // A JSON-serialized object that provides optional information that might be
   // needed by the supported payment methods.
-  base::string16 data;
+  std::string data;
 
   // When the methods include "basic-card", a list of networks and types that
   // are supported.
-  std::vector<base::string16> supported_networks;
-  std::vector<base::string16> supported_types;
+  std::vector<std::string> supported_networks;
+  std::vector<std::string> supported_types;
 };
 
 }  // namespace payments