Layered component for web payments

components/payments/core/BUILD.gn

+# Copyright 2017 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.
+
+static_library("core") {
+  sources = [
+    "address_normalizer.cc",
+    "address_normalizer.h",
+    "currency_formatter.cc",
+    "currency_formatter.h",
+  ]
+
+  deps = [
+    "//base",
+    "//components/autofill/core/browser",
+  ]
+
+  public_deps = [
+    "//third_party/icu",
+    "//third_party/libaddressinput",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "address_normalizer_unittest.cc",
+    "currency_formatter_unittest.cc",
+  ]
+
+  deps = [
+    ":core",
+    "//base",
+    "//base/test:test_support",
+    "//components/autofill/core/browser",
+    "//testing/gtest",
+    "//third_party/libaddressinput:test_support",
+  ]
+}