Adding Size() to AbstractFileEnumerator

webkit/fileapi/local_file_system_file_util.cc

Index: webkit/fileapi/local_file_system_file_util.cc
diff --git a/webkit/fileapi/local_file_system_file_util.cc b/webkit/fileapi/local_file_system_file_util.cc
index ca028e42cb11499d7c46fb51d58a6e2e0e80d610..0ed3b942803dfd50c455666f56682aaf572c58e2 100644
--- a/webkit/fileapi/local_file_system_file_util.cc
+++ b/webkit/fileapi/local_file_system_file_util.cc
@@ -241,11 +241,13 @@ class LocalFileSystemFileEnumerator
 
   ~LocalFileSystemFileEnumerator() {}
 
-  virtual FilePath Next();
-  virtual bool IsDirectory();
+  virtual FilePath Next() OVERRIDE;
+  virtual int64 Size() OVERRIDE;
+  virtual bool IsDirectory() OVERRIDE;
 
  private:
   file_util::FileEnumerator file_enum_;
+  file_util::FileEnumerator::FindInfo file_util_info_;
   FilePath platform_root_path_;
   FilePath virtual_root_path_;
 };
@@ -254,16 +256,19 @@ FilePath LocalFileSystemFileEnumerator::Next() {
   FilePath next = file_enum_.Next();
   if (next.empty())
     return next;
+  file_enum_.GetFindInfo(&file_util_info_);
 
   FilePath path;
   platform_root_path_.AppendRelativePath(next, &path);
   return virtual_root_path_.Append(path);
 }
 
+int64 LocalFileSystemFileEnumerator::Size() {
+  return file_util::FileEnumerator::GetFilesize(file_util_info_);
+}
+
 bool LocalFileSystemFileEnumerator::IsDirectory() {
-  file_util::FileEnumerator::FindInfo file_util_info;
-  file_enum_.GetFindInfo(&file_util_info);
-  return file_util::FileEnumerator::IsDirectory(file_util_info);
+  return file_util::FileEnumerator::IsDirectory(file_util_info_);
 }
 
 FileSystemFileUtil::AbstractFileEnumerator*