Use upstream libaddressinput in Chrome.

components/autofill/core/browser/autofill_country.cc

Index: components/autofill/core/browser/autofill_country.cc
diff --git a/components/autofill/core/browser/autofill_country.cc b/components/autofill/core/browser/autofill_country.cc
index d31ac6c1a0a659168f8552145e5643d0d0bbdf38..2e0be52843a617c61ca2c336ba0535196068086f 100644
--- a/components/autofill/core/browser/autofill_country.cc
+++ b/components/autofill/core/browser/autofill_country.cc
@@ -1044,15 +1044,18 @@ const std::string CountryNames::GetSortKey(const icu::Collator& collator,
 
 AutofillCountry::AutofillCountry(const std::string& country_code,
                                  const std::string& locale) {
-  const CountryDataMap::Iterator result = CountryDataMap::Find(country_code);
-  DCHECK(result != CountryDataMap::End());
-  const CountryData& data = result->second;
-
   country_code_ = country_code;
   name_ = l10n_util::GetDisplayNameForCountry(country_code, locale);
-  postal_code_label_ = l10n_util::GetStringUTF16(data.postal_code_label_id);
-  state_label_ = l10n_util::GetStringUTF16(data.state_label_id);
-  address_required_fields_ = data.address_required_fields;
+
+  const CountryDataMap::Iterator result = CountryDataMap::Find(country_code);
+  if (result != CountryDataMap::End()) {
+    const CountryData& data = result->second;
+    postal_code_label_ = l10n_util::GetStringUTF16(data.postal_code_label_id);
+    state_label_ = l10n_util::GetStringUTF16(data.state_label_id);
+    address_required_fields_ = data.address_required_fields;
+  } else {
+    postal_code_label_ = state_label_ = base::ASCIIToUTF16("[UNKNOWN]");
+  }
 }
 
 AutofillCountry::~AutofillCountry() {