Made the bookmarks extension APIs aware of managed bookmarks.

chrome/browser/extensions/api/bookmarks/bookmark_api_constants.cc

 // Copyright (c) 2011 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/extensions/api/bookmarks/bookmark_api_constants.h"
 
 namespace extensions {
 namespace bookmark_api_constants {
 
 const char kParentIdKey[] = "parentId";
 const char kUrlKey[] = "url";
 const char kTitleKey[] = "title";
 
 const char kNoNodeError[] = "Can't find bookmark for id.";
 const char kNoParentError[] = "Can't find parent bookmark for id.";
 const char kFolderNotEmptyError[] =
     "Can't remove non-empty folder (use recursive to force).";
 const char kInvalidIdError[] = "Bookmark id is invalid.";
 const char kInvalidIndexError[] = "Index out of bounds.";
 const char kInvalidUrlError[] = "Invalid URL.";
 const char kModifySpecialError[] = "Can't modify the root bookmark folders.";
 const char kEditBookmarksDisabled[] = "Bookmark editing is disabled.";
+const char kModifyManagedError[] = "Can't modify managed bookmarks.";
 
 }  // namespace bookmark_api_constants
 }  // namespace extensions