Use upstream libaddressinput in Chrome.

third_party/libaddressinput/chromium/load_rules_delegate.h

+// Copyright 2014 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 THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_LOAD_RULES_DELEGATE_H_
+#define THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_LOAD_RULES_DELEGATE_H_
+
+#include <string>
+
+namespace autofill {
+
+// The object to be notified when loading of address validation rules is
+// finished.
+class LoadRulesDelegate {

[Evan Stade, 2014/06/30 18:49:38]

nit: LoadRulesObserver or LoadRulesListener

A "delegate" does something on behalf of |this|, but that's somewhat inverted
from the relationship here.

[please use gerrit instead, 2014/07/01 04:53:50]

Done.

+ public:
+  virtual ~LoadRulesDelegate() {}
+
+  // Called when the validation rules for the |country_code| have been loaded.
+  // The validation rules include the generic rules for the |country_code| and
+  // specific rules for the country's administrative areas, localities, and
+  // dependent localities. If a country has language-specific validation rules,
+  // then these are also loaded.
+  //
+  // The |success| parameter is true when the rules were loaded successfully.
+  virtual void OnAddressValidationRulesLoaded(const std::string& country_code,
+                                              bool success) = 0;
+};
+
+}  // namespace autofill
+
+#endif  // THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_LOAD_RULES_DELEGATE_H_