Updating modification time of parent when a folder node is added in it in bookmark bar.

chrome/browser/extensions/api/bookmarks/bookmarks_api.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 "chrome/browser/extensions/api/bookmarks/bookmarks_api.h"
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/i18n/file_util_icu.h"
 #include "base/i18n/time_formatting.h"
@@ skipping 162 matching lines @@
   if (details.url.get())
     url_string = *details.url.get();
 
   GURL url(url_string);
   if (!url_string.empty() && !url.is_valid()) {
     error_ = keys::kInvalidUrlError;
     return NULL;
   }
 
   const BookmarkNode* node;
-  if (url_string.length())
+  if (url_string.length()) {
     node = model->AddURLWithCreationTimeAndMetaInfo(
         parent, index, title, url, base::Time::Now(), meta_info);
-  else
+  } else {
     node = model->AddFolderWithMetaInfo(parent, index, title, meta_info);
+    model->SetDateFolderModified(parent, base::Time::Now());
+  }
+
   DCHECK(node);
-  if (!node) {
-    error_ = keys::kNoNodeError;
-    return NULL;
-  }
 
   return node;
 }
 
 bool BookmarksFunction::EditBookmarksEnabled() {
   PrefService* prefs = user_prefs::UserPrefs::Get(GetProfile());
   if (prefs->GetBoolean(::bookmarks::prefs::kEditBookmarksEnabled))
     return true;
   error_ = keys::kEditBookmarksDisabled;
   return false;
@@ skipping 642 matching lines @@
 }
 
 void BookmarksExportFunction::FileSelected(const base::FilePath& path,
                                            int index,
                                            void* params) {
   bookmark_html_writer::WriteBookmarks(GetProfile(), path, NULL);
   Release();  // Balanced in BookmarksIOFunction::SelectFile()
 }
 
 }  // namespace extensions