First step towards invalidations componentization

components/invalidation.gypi

Index: components/invalidation.gypi
diff --git a/components/invalidation.gypi b/components/invalidation.gypi
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+# 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.
+
+{
+  'targets': [
+    {
+      'target_name': 'invalidation',
+      'type': 'static_library',
+      'dependencies': [
+        '../base/base.gyp:base',
+        '../sync/sync.gyp:sync',
+        '../third_party/cacheinvalidation/cacheinvalidation.gyp:cacheinvalidation',
+        'keyed_service_core',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'invalidation/invalidation_logger.cc',
+        'invalidation/invalidation_logger.h',
+        'invalidation/invalidation_logger_observer.h',
+        'invalidation/invalidation_service.h',
+        'invalidation/ticl_settings_provider.cc',
+        'invalidation/ticl_settings_provider.h',
+      ],
+    },
+  ],
+}