Add note page to settings.

chrome/browser/ui/webui/settings/chromeos/note_handler.cc

+// Copyright 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/settings/chromeos/note_handler.h"
+
+#include "ash/common/ash_switches.h"
+#include "base/command_line.h"
+#include "content/public/browser/web_ui_data_source.h"
+
+namespace chromeos {
+namespace settings {
+
+namespace {
+
+bool IsPaletteEnabled() {
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
+      ash::switches::kAshEnablePalette);
+}
+
+}  // namespace
+
+NoteHandler::NoteHandler(content::WebUIDataSource* html_source) {
+  html_source->AddBoolean("noteAllowed", IsPaletteEnabled());
+}
+
+NoteHandler::~NoteHandler() {}
+
+void NoteHandler::RegisterMessages() {}
+
+void NoteHandler::OnJavascriptAllowed() {}
+
+void NoteHandler::OnJavascriptDisallowed() {}
+
+}  // namespace settings
+}  // namespace chromeos