Build sync engine as part of the browser build

chrome/browser/sync/util/path_helpers.cc

 // Copyright (c) 2009 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 "chrome/browser/sync/util/path_helpers.h"
 
 #include <Shlwapi.h>
 #include <stdlib.h>
 
 #include "base/logging.h"
 #include "base/port.h"
+#include "build/build_config.h"
 #include "chrome/browser/sync/syncable/syncable.h"
 
-#ifndef OS_WINDOWS
+#ifndef OS_WIN
 #error Compile this file on Windows only.
 #endif
 
 using std::string;
 
-#if OS_WINDOWS
+#if OS_WIN
 const char PATH_SEPARATOR = '\\';
 #else
 const char PATH_SEPARATOR = '/';
-#endif  // OS_WINDOWS
+#endif  // OS_WIN
 
 
 static PathString RemoveTrailingSlashes16(PathString str) {
   while ((str.length() > 0) && (str.at(str.length() - 1) == kPathSeparator[0]))
     str.resize(str.length() - 1);
   return str;
 }
 
 static string RemoveTrailingSlashes(string str) {
   while ((str.length() > 0) && (str.at(str.length() - 1) == PATH_SEPARATOR))
@@ skipping 109 matching lines @@
   }
   if ((L"" == sub) && (L"" == postsub)) {
     sub = L"~1";
   }
 
   // Return the new name, only if it differs from the original.
   if ((sub + postsub) == component)
     return L"";
   return (sub + postsub);
 }