[MD Bookmarks] Implement adding folders and bookmarks from toolbar menu.

chrome/browser/ui/webui/md_bookmarks/md_bookmarks_ui.cc

Index: chrome/browser/ui/webui/md_bookmarks/md_bookmarks_ui.cc
diff --git a/chrome/browser/ui/webui/md_bookmarks/md_bookmarks_ui.cc b/chrome/browser/ui/webui/md_bookmarks/md_bookmarks_ui.cc
index 31744a090288c63be1ba2d993d89fe9e77765942..6e51066786c780e6c8c85a6a16ff514e0ec468e0 100644
--- a/chrome/browser/ui/webui/md_bookmarks/md_bookmarks_ui.cc
+++ b/chrome/browser/ui/webui/md_bookmarks/md_bookmarks_ui.cc
@@ -32,6 +32,10 @@ content::WebUIDataSource* CreateMdBookmarksUIHTMLSource(Profile* profile) {
       content::WebUIDataSource::Create(chrome::kChromeUIBookmarksHost);
 
   // Localized strings (alphabetical order).
+  AddLocalizedString(source, "addBookmarkTitle",
+                     IDS_BOOKMARK_ADD_BOOKMARK_TITLE);
+  AddLocalizedString(source, "addFolderTitle",
+                     IDS_BOOKMARK_ADD_FOLDER_TITLE);
   AddLocalizedString(source, "cancelEdit", IDS_CANCEL);
   AddLocalizedString(source, "clearSearch",
                      IDS_MD_BOOKMARK_MANAGER_CLEAR_SEARCH);