Reland "Use upstream libaddressinput in Chrome."

chrome/browser/ui/autofill/country_combobox_model.cc

Index: chrome/browser/ui/autofill/country_combobox_model.cc
diff --git a/chrome/browser/ui/autofill/country_combobox_model.cc b/chrome/browser/ui/autofill/country_combobox_model.cc
index a5d9f62c282b05b70f652a31a0939936d72b1f22..fda64cb4407d06e7e507e3f2c62be4a13dfa2154 100644
--- a/chrome/browser/ui/autofill/country_combobox_model.cc
+++ b/chrome/browser/ui/autofill/country_combobox_model.cc
@@ -4,6 +4,9 @@
 
 #include "chrome/browser/ui/autofill/country_combobox_model.h"
 
+#include <algorithm>
+#include <iterator>
+
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ -14,7 +17,7 @@
 
 // TODO(rouslan): Remove this check. http://crbug.com/337587
 #if defined(ENABLE_AUTOFILL_DIALOG)
-#include "third_party/libaddressinput/chromium/cpp/include/libaddressinput/address_ui.h"
+#include "third_party/libaddressinput/src/cpp/include/libaddressinput/address_ui.h"
 #endif
 
 namespace autofill {
@@ -41,12 +44,22 @@ void CountryComboboxModel::SetCountries(
   }
 
   // The sorted list of countries.
-#if defined(ENABLE_AUTOFILL_DIALOG)
-  const std::vector<std::string>& available_countries =
-      ::i18n::addressinput::GetRegionCodes();
-#else
   std::vector<std::string> available_countries;
   AutofillCountry::GetAvailableCountries(&available_countries);
+
+#if defined(ENABLE_AUTOFILL_DIALOG)
+  // Filter out the countries that do not have rules for address input and
+  // validation.
+  const std::vector<std::string>& addressinput_countries =
+      ::i18n::addressinput::GetRegionCodes();
+  std::vector<std::string> filtered_countries;
+  filtered_countries.reserve(available_countries.size());
+  std::set_intersection(available_countries.begin(),
+                        available_countries.end(),
+                        addressinput_countries.begin(),
+                        addressinput_countries.end(),
+                        std::back_inserter(filtered_countries));
+  available_countries.swap(filtered_countries);
 #endif
 
   std::vector<AutofillCountry*> sorted_countries;