Use upstream libaddressinput in Chrome.

third_party/libaddressinput/chromium/has_all_required_fields.h

Index: third_party/libaddressinput/chromium/has_all_required_fields.h
diff --git a/third_party/libaddressinput/chromium/has_all_required_fields.h b/third_party/libaddressinput/chromium/has_all_required_fields.h
new file mode 100644
index 0000000000000000000000000000000000000000..61cb810e4d69af673d62ae8c4ca4d93c2c0996f6
--- /dev/null
+++ b/third_party/libaddressinput/chromium/has_all_required_fields.h
@@ -0,0 +1,21 @@
+// 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_HAS_ALL_REQUIRED_FIELDS_H_
+#define THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_HAS_ALL_REQUIRED_FIELDS_H_
+
+namespace i18n {
+namespace addressinput {
+struct AddressData;
+}
+}
+
+namespace autofill {
+
+bool HasAllRequiredFields(
+    const ::i18n::addressinput::AddressData& address_to_check);
+
+}  // namespace autofill
+
+#endif  // THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_AS_ALL_REQUIRED_FIELDS_H_