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

sync/base/sync_export.h

Index: sync/base/sync_export.h
diff --git a/sync/base/sync_export.h b/sync/base/sync_export.h
index a38e8b23a365e01b1bee96c4985e07fa6f28a740..b611d391bcae18dae7413652ca6bfde70763118f 100644
--- a/sync/base/sync_export.h
+++ b/sync/base/sync_export.h
@@ -1,12 +1,11 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2012 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 SYNC_SYNC_EXPORT_H_
 #define SYNC_SYNC_EXPORT_H_
 
-// TODO(akalin): Remove '0 && ' when sync becomes a component.
-#if 0 && defined(COMPONENT_BUILD)
+#if defined(COMPONENT_BUILD)
 #if defined(WIN32)
 
 #if defined(SYNC_IMPLEMENTATION)