Implement the palette help and options buttons.

ash/common/system/tray/system_tray_delegate.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 "ash/common/system/tray/system_tray_delegate.h"
 
 #include "ash/common/system/tray/ime_info.h"
 #include "ash/common/system/tray/system_tray_item.h"
 
 namespace ash {
@@ skipping 95 matching lines @@
 }
 
 void SystemTrayDelegate::ShowIMESettings() {}
 
 void SystemTrayDelegate::ShowHelp() {}
 
 void SystemTrayDelegate::ShowAccessibilityHelp() {}
 
 void SystemTrayDelegate::ShowAccessibilitySettings() {}
 
+void SystemTrayDelegate::ShowPaletteHelp() {}
+
+void SystemTrayDelegate::ShowPaletteSettings() {}
+
 void SystemTrayDelegate::ShowPublicAccountInfo() {}
 
 void SystemTrayDelegate::ShowEnterpriseInfo() {}
 
 void SystemTrayDelegate::ShowSupervisedUserInfo() {}
 
 void SystemTrayDelegate::ShowUserLogin() {}
 
 void SystemTrayDelegate::SignOut() {}
 
@@ skipping 103 matching lines @@
     SystemTray* tray) {
   return nullptr;
 }
 
 std::unique_ptr<SystemTrayItem> SystemTrayDelegate::CreateRotationLockTrayItem(
     SystemTray* tray) {
   return nullptr;
 }
 
 }  // namespace ash