[Payments] Show admin area complete names on PR form.

components/payments/core/subkey_requester.h

 // 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.
 
 #ifndef COMPONENTS_PAYMENTS_CORE_SUBKEY_REQUESTER_H_
 #define COMPONENTS_PAYMENTS_CORE_SUBKEY_REQUESTER_H_
 
 #include "base/macros.h"
 #include "third_party/libaddressinput/chromium/chrome_address_validator.h"
 
 namespace payments {
 
+// This receives a region code and the device's language.
 using SubKeyReceiverCallback =
-    base::OnceCallback<void(const std::vector<std::string>&)>;
+    base::OnceCallback<void(const std::vector<std::string>&,
+                            const std::vector<std::string>&)>;
 
 // SubKeyRequester Loads Rules from the server and extracts the subkeys.
 // For a given key (region code for a country, such as US), the list of its
 // corresponding subkeys is the list of that countries admin areas (states,
 // provinces, ..).
 class SubKeyRequester : public autofill::LoadRulesListener {
  public:
   // The interface for the subkey request.
   class Request {
    public:
     virtual void OnRulesLoaded() = 0;
     virtual ~Request() {}
   };
 
   SubKeyRequester(std::unique_ptr<i18n::addressinput::Source> source,
                   std::unique_ptr<i18n::addressinput::Storage> storage);
   ~SubKeyRequester() override;
 
   // If the rules for |region_code| are loaded, this gets the subkeys for the
   // |region_code|,  synchronously. If they are not loaded yet, it sets up a
   // task to get the subkeys when the rules are loaded (asynchronous). If the
   // loading has not yet started, it will also start loading the rules for the
   // |region_code|. The received subkeys will be returned to the |requester|. If
   // the subkeys are not received in |timeout_seconds|, then the requester will
   // be informed and the request will be canceled. |requester| should never be
-  // null.
+  // null. The requesting device language is set to |language|, ex:"fr".
   void StartRegionSubKeysRequest(const std::string& region_code,
+                                 const std::string& language,
                                  int timeout_seconds,
                                  SubKeyReceiverCallback cb);
 
   // Returns whether the rules for the specified |region_code| have finished
   // loading.
   bool AreRulesLoadedForRegion(const std::string& region_code);
 
   // Start loading the rules for the specified |region_code|.
   virtual void LoadRulesForRegion(const std::string& region_code);
 
@@ skipping 12 matching lines @@
 
   // The address validator used to load subkeys.
   autofill::AddressValidator address_validator_;
 
   DISALLOW_COPY_AND_ASSIGN(SubKeyRequester);
 };
 
 }  // namespace payments
 
 #endif  // COMPONENTS_PAYMENTS_CORE_SUBKEY_REQUESTER_H_