MD Bookmarks: Focus sidebar nodes on click without showing an outline

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

 // Copyright (c) 2016 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/ui/webui/md_bookmarks/md_bookmarks_ui.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/strings/string16.h"
@@ skipping 111 matching lines @@
   source->AddResourcePath("edit_dialog.js", IDR_MD_BOOKMARKS_EDIT_DIALOG_JS);
   source->AddResourcePath("folder_node.html",
                           IDR_MD_BOOKMARKS_FOLDER_NODE_HTML);
   source->AddResourcePath("folder_node.js",
                           IDR_MD_BOOKMARKS_FOLDER_NODE_JS);
   source->AddResourcePath("icons.html", IDR_MD_BOOKMARKS_ICONS_HTML);
   source->AddResourcePath("item.html", IDR_MD_BOOKMARKS_ITEM_HTML);
   source->AddResourcePath("item.js", IDR_MD_BOOKMARKS_ITEM_JS);
   source->AddResourcePath("list.html", IDR_MD_BOOKMARKS_LIST_HTML);
   source->AddResourcePath("list.js", IDR_MD_BOOKMARKS_LIST_JS);
+  source->AddResourcePath("mouse_focus_behavior.html",
+                          IDR_MD_BOOKMARKS_MOUSE_FOCUS_BEHAVIOR_HTML);
+  source->AddResourcePath("mouse_focus_behavior.js",
+                          IDR_MD_BOOKMARKS_MOUSE_FOCUS_BEHAVIOR_JS);
   source->AddResourcePath("reducers.html", IDR_MD_BOOKMARKS_REDUCERS_HTML);
   source->AddResourcePath("reducers.js", IDR_MD_BOOKMARKS_REDUCERS_JS);
   source->AddResourcePath("router.html", IDR_MD_BOOKMARKS_ROUTER_HTML);
   source->AddResourcePath("router.js", IDR_MD_BOOKMARKS_ROUTER_JS);
   source->AddResourcePath("shared_style.html",
                           IDR_MD_BOOKMARKS_SHARED_STYLE_HTML);
   source->AddResourcePath("shared_vars.html",
                           IDR_MD_BOOKMARKS_SHARED_VARS_HTML);
   source->AddResourcePath("store.html", IDR_MD_BOOKMARKS_STORE_HTML);
   source->AddResourcePath("store.js", IDR_MD_BOOKMARKS_STORE_JS);
@@ skipping 30 matching lines @@
       "toastItemsDeleted", IDS_MD_BOOKMARK_MANAGER_TOAST_ITEMS_DELETED);
   web_ui->AddMessageHandler(std::move(plural_string_handler));
 
   web_ui->AddMessageHandler(base::MakeUnique<BookmarksMessageHandler>());
 }
 
 // static
 bool MdBookmarksUI::IsEnabled() {
   return base::FeatureList::IsEnabled(features::kMaterialDesignBookmarks);
 }