Update Autofill Private API to provide a list of available countries.

chrome/browser/extensions/api/autofill_private/autofill_private_api.cc

 // Copyright 2015 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 "chrome/browser/extensions/api/autofill_private/autofill_private_api.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/guid.h"
@@ skipping 261 matching lines @@
     profile.set_guid(base::GenerateGUID());
     personal_data->AddProfile(profile);
   } else {
     personal_data->UpdateProfile(profile);
   }
 
   return RespondNow(NoArguments());
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+// AutofillPrivateGetCountryListFunction
+
+AutofillPrivateGetCountryListFunction::AutofillPrivateGetCountryListFunction()
+    : chrome_details_(this) {}
+
+AutofillPrivateGetCountryListFunction::
+    ~AutofillPrivateGetCountryListFunction() {}
+
+ExtensionFunction::ResponseAction
+    AutofillPrivateGetCountryListFunction::Run() {
+  autofill::PersonalDataManager* personal_data =
+      autofill::PersonalDataManagerFactory::GetForProfile(
+          chrome_details_.GetProfile());
+  DCHECK(personal_data && personal_data->IsDataLoaded());

[stevenjb, 2016/06/08 03:43:23]

Assuming data is loaded asynchronously, it would be extremely unlikely but not
strictly impossible for IsDataLoaded to be false. In that unlikely edge case I
would just return an empty list.

[hcarmona, 2016/06/08 15:05:50]

Done.

+
+  autofill_util::CountryEntryList countryList =
+      extensions::autofill_util::GenerateCountryList(*personal_data);
+
+  return RespondNow(ArgumentList(
+      api::autofill_private::GetCountryList::Results::Create(countryList)));
+}
+
+////////////////////////////////////////////////////////////////////////////////
 // AutofillPrivateGetAddressComponentsFunction
 
 AutofillPrivateGetAddressComponentsFunction::
     ~AutofillPrivateGetAddressComponentsFunction() {}
 
 ExtensionFunction::ResponseAction
     AutofillPrivateGetAddressComponentsFunction::Run() {
   std::unique_ptr<api::autofill_private::GetAddressComponents::Params>
       parameters =
           api::autofill_private::GetAddressComponents::Params::Create(*args_);
@@ skipping 189 matching lines @@
 
   autofill_util::CreditCardEntryList creditCardList =
       extensions::autofill_util::GenerateCreditCardList(*personal_data);
 
   return RespondNow(
       ArgumentList(api::autofill_private::GetCreditCardList::Results::Create(
           creditCardList)));
 }
 
 }  // namespace extensions