Move more file_util functions to base namespace.

chrome/browser/chromeos/extensions/external_cache.cc

 // Copyright (c) 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 "chrome/browser/chromeos/extensions/external_cache.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/file_util.h"
@@ skipping 291 matching lines @@
   // Enumerate all the files in the cache |cache_dir|, including directories
   // and symlinks. Each unrecognized file will be erased.
   int types = base::FileEnumerator::FILES | base::FileEnumerator::DIRECTORIES |
       base::FileEnumerator::SHOW_SYM_LINKS;
   base::FileEnumerator enumerator(cache_dir, false /* recursive */, types);
   for (base::FilePath path = enumerator.Next();
        !path.empty(); path = enumerator.Next()) {
     base::FileEnumerator::FileInfo info = enumerator.GetInfo();
     std::string basename = path.BaseName().value();
 
-    if (info.IsDirectory() || file_util::IsLink(info.GetName())) {
+    if (info.IsDirectory() || base::IsLink(info.GetName())) {
       LOG(ERROR) << "Erasing bad file in ExternalCache directory: " << basename;
       base::DeleteFile(path, true /* recursive */);
       continue;
     }
 
     // Skip flag file that indicates that cache is ready.
     if (basename == kCacheReadyFlagFileName)
       continue;
 
     // crx files in the cache are named <extension-id>-<version>.crx.
@@ skipping 231 matching lines @@
                                    FROM_HERE,
                                    callback);
 }
 
 std::string ExternalCache::Delegate::GetInstalledExtensionVersion(
     const std::string& id) {
   return std::string();
 }
 
 }  // namespace chromeos