A follow-up nit fix for jumplist file operations

base/files/file_util_win.cc

 // Copyright (c) 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.
 
 #include "base/files/file_util.h"
 
 #include <windows.h>
 #include <io.h>
 #include <psapi.h>
 #include <shellapi.h>
@@ skipping 159 matching lines @@
     if (real_to_path.empty())
       return false;
   } else {
     real_to_path = MakeAbsoluteFilePath(real_to_path.DirName());
     if (real_to_path.empty())
       return false;
   }
   FilePath real_from_path = MakeAbsoluteFilePath(from_path);
   if (real_from_path.empty())
     return false;
-  // Note: it's important to use IsParent() here as string comparison would
-  // result in a false negative, e.g. on C:\bar\Foo versus C:\bar\FooOld.
-  if (real_to_path.value().size() >= real_from_path.value().size() &&
-      real_from_path.IsParent(real_to_path)) {
+  if (real_to_path == real_from_path || real_from_path.IsParent(real_to_path))
     return false;
-  }
 
   int traverse_type = FileEnumerator::FILES;
   if (recursive)
     traverse_type |= FileEnumerator::DIRECTORIES;
   FileEnumerator traversal(from_path, recursive, traverse_type);
 
   if (!PathExists(from_path)) {
     DLOG(ERROR) << "CopyDirectory() couldn't stat source directory: "
                 << from_path.value().c_str();
     return false;
@@ skipping 628 matching lines @@
     // Like Move, this function is not transactional, so we just
     // leave the copied bits behind if deleting from_path fails.
     // If to_path exists previously then we have already overwritten
     // it by now, we don't get better off by deleting the new bits.
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace base