[MD Bookmarks] Add skeleton for Material Design Bookmarks

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 "chrome/browser/profiles/profile.h"
+#include "chrome/common/chrome_features.h"
+#include "chrome/common/url_constants.h"
+#include "chrome/grit/browser_resources.h"
+#include "chrome/grit/generated_resources.h"
+#include "components/strings/grit/components_strings.h"
+#include "content/public/browser/web_ui.h"
+#include "content/public/browser/web_ui_data_source.h"
+
+namespace {
+
+content::WebUIDataSource* CreateMdBookmarksUIHTMLSource(Profile* profile) {
+  content::WebUIDataSource* source =
+      content::WebUIDataSource::Create(chrome::kChromeUIBookmarksHost);
+
+  // Localized strings (alphabetical order).
+  source->AddLocalizedString("title", IDS_BOOKMARK_MANAGER_TITLE);
+
+  source->SetDefaultResource(IDR_MD_BOOKMARKS_BOOKMARKS_HTML);
+  source->SetJsonPath("strings.js");
+
+  return source;
+}
+
+}  // namespace
+
+MdBookmarksUI::MdBookmarksUI(content::WebUI* web_ui) : WebUIController(web_ui) {
+  // Set up the chrome://bookmarks/ source.
+  Profile* profile = Profile::FromWebUI(web_ui);
+  content::WebUIDataSource::Add(profile,
+                                CreateMdBookmarksUIHTMLSource(profile));
+}
+
+// static
+bool MdBookmarksUI::IsEnabled() {
+  return base::FeatureList::IsEnabled(features::kMaterialDesignBookmarks);
+}