[sync] Componentize sync: Part 6: Add more SYNC_EXPORTs to files in src/sync/

sync/util/data_encryption_win.h

Index: sync/util/data_encryption_win.h
diff --git a/sync/util/data_encryption_win.h b/sync/util/data_encryption_win.h
index 5b7dc09f97c039b0de44aaf6e9dcb93da3024b2a..1b037c73e52a0b86888bbf037321f45f5297527c 100644
--- a/sync/util/data_encryption_win.h
+++ b/sync/util/data_encryption_win.h
@@ -1,4 +1,4 @@
-// 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.
 
@@ -9,11 +9,13 @@
 #include <vector>
 
 #include "base/basictypes.h"
+#include "sync/base/sync_export.h"
 
 namespace syncer {
 
-std::vector<uint8> EncryptData(const std::string& data);
-bool DecryptData(const std::vector<uint8>& in_data, std::string* out_data);
+SYNC_EXPORT_PRIVATE std::vector<uint8> EncryptData(const std::string& data);
+SYNC_EXPORT bool DecryptData(const std::vector<uint8>& in_data,
+                             std::string* out_data);
 
 }  // namespace syncer