Move CUP to new component client_update_protocol

components/client_update_protocol.gypi

+# Copyright 2016 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.
+
+{
+  'targets': [
+    {
+      # GN version: //components/client_update_protocol
+      'target_name': 'client_update_protocol',
+      'type': 'static_library',
+      'dependencies': [
+        '../base/base.gyp:base',
+        '../crypto/crypto.gyp:crypto',
+      ],
+
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'client_update_protocol/ecdsa.h',
+        'client_update_protocol/ecdsa.cc',
+      ],
+    },
+    {
+      # GN version: //components/client_update_protocol:test_support
+      'target_name': 'client_update_protocol_test_support',
+      'type': 'static_library',
+      'dependencies': [
+        'update_client',
+        '../testing/gtest.gyp:gtest',
+      ],
+
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'client_update_protocol/ecdsa_unittest.cc',
+      ],
+    },
+  ],
+}