Revert 198820 "Move FileEnumerator to its own file, do some refa..."

trunk/src/chrome/browser/chromeos/drive/file_cache_metadata.cc

Index: trunk/src/chrome/browser/chromeos/drive/file_cache_metadata.cc
===================================================================
--- trunk/src/chrome/browser/chromeos/drive/file_cache_metadata.cc	(revision 198849)
+++ trunk/src/chrome/browser/chromeos/drive/file_cache_metadata.cc	(working copy)
@@ -6,7 +6,6 @@
 
 #include "base/callback.h"
 #include "base/file_util.h"
-#include "base/files/file_enumerator.h"
 #include "base/metrics/histogram.h"
 #include "base/sequenced_task_runner.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
@@ -71,10 +70,11 @@
   DCHECK(cache_map);
   DCHECK(processed_file_map);
 
-  base::FileEnumerator enumerator(
+  file_util::FileEnumerator enumerator(
       cache_paths[sub_dir_type],
       false,  // not recursive
-      base::FileEnumerator::FILES | base::FileEnumerator::SHOW_SYM_LINKS,
+      file_util::FileEnumerator::FILES |
+      file_util::FileEnumerator::SHOW_SYM_LINKS,
       util::kWildCard);
   for (base::FilePath current = enumerator.Next(); !current.empty();
        current = enumerator.Next()) {