[sync] Componentize sync: Part Final: Target 'sync' is now its own component

sync/sync_proto.gypi

Index: sync/sync_proto.gypi
diff --git a/sync/sync_proto.gypi b/sync/sync_proto.gypi
new file mode 100644
index 0000000000000000000000000000000000000000..0e288fbbf67067d658a4b177a3a3ebaca8b1c214
--- /dev/null
+++ b/sync/sync_proto.gypi
@@ -0,0 +1,51 @@
+# Copyright 2013 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.
+
+{
+  'include_dirs': [
+    '..',
+  ],
+  'defines': [
+    'SYNC_IMPLEMENTATION',
+  ],
+  'sources': [
+    'protocol/app_notification_specifics.proto',
+    'protocol/app_setting_specifics.proto',
+    'protocol/app_specifics.proto',
+    'protocol/autofill_specifics.proto',
+    'protocol/bookmark_specifics.proto',
+    'protocol/client_commands.proto',
+    'protocol/client_debug_info.proto',
+    'protocol/device_info_specifics.proto',
+    'protocol/dictionary_specifics.proto',
+    'protocol/encryption.proto',
+    'protocol/experiments_specifics.proto',
+    'protocol/extension_setting_specifics.proto',
+    'protocol/extension_specifics.proto',
+    'protocol/get_updates_caller_info.proto',
+    'protocol/history_delete_directive_specifics.proto',
+    'protocol/nigori_specifics.proto',
+    'protocol/password_specifics.proto',
+    'protocol/preference_specifics.proto',
+    'protocol/priority_preference_specifics.proto',
+    'protocol/search_engine_specifics.proto',
+    'protocol/session_specifics.proto',
+    'protocol/sync.proto',
+    'protocol/sync_enums.proto',
+    'protocol/synced_notification_specifics.proto',
+    'protocol/test.proto',
+    'protocol/theme_specifics.proto',
+    'protocol/typed_url_specifics.proto',
+    'protocol/unique_position.proto',
+  ],
+  'variables': {
+    'proto_in_dir': './protocol',
+    'proto_out_dir': 'sync/protocol',
+    'cc_generator_options': 'dllexport_decl=SYNC_EXPORT:',
+    'cc_include': 'sync/base/sync_export.h',
+  },
+  'includes': [
+    '../build/protoc.gypi'
+  ],
+}