Revert 274558 "Move some extensions renderer resources to extens..."

trunk/src/extensions/renderer/resources/entry_id_manager.js

-// Copyright 2014 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.
-
-var fileSystemNatives = requireNative('file_system_natives');
-
-var nameToIds = {};
-var idsToEntries = {};
-
-function computeName(entry) {
-  return entry.filesystem.name + ':' + entry.fullPath;
-}
-
-function computeId(entry) {
-  var fileSystemId = fileSystemNatives.CrackIsolatedFileSystemName(
-      entry.filesystem.name);
-  if (!fileSystemId)
-    return null;
-  // Strip the leading '/' from the path.
-  return fileSystemId + ':' + $String.slice(entry.fullPath, 1);
-}
-
-function registerEntry(id, entry) {
-  var name = computeName(entry);
-  nameToIds[name] = id;
-  idsToEntries[id] = entry;
-}
-
-function getEntryId(entry) {
-  var name = null;
-  try {
-    name = computeName(entry);
-  } catch(e) {
-    return null;
-  }
-  var id = nameToIds[name];
-  if (id != null)
-    return id;
-
-  // If an entry has not been registered, compute its id and register it.
-  id = computeId(entry);
-  registerEntry(id, entry);
-  return id;
-}
-
-function getEntryById(id) {
-  return idsToEntries[id];
-}
-
-exports.registerEntry = registerEntry;
-exports.getEntryId = getEntryId;
-exports.getEntryById = getEntryById;