mash: Remove ShelfDelegate; move functions to ShelfModel.

ash/shell/shell_delegate_impl.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/shell/shell_delegate_impl.h"
 
 #include "ash/accessibility_delegate.h"
 #include "ash/default_accessibility_delegate.h"
 #include "ash/default_wallpaper_delegate.h"
 #include "ash/gpu_support_stub.h"
 #include "ash/palette_delegate.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell/context_menu.h"
 #include "ash/shell/example_factory.h"
 #include "ash/shell/toplevel_window.h"
 #include "ash/system/tray/default_system_tray_delegate.h"
 #include "ash/test/test_keyboard_ui.h"
-#include "ash/test/test_shelf_delegate.h"
 #include "ash/wm/window_state.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/user_manager/user_info_impl.h"
 #include "ui/aura/window.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace ash {
@@ skipping 84 matching lines @@
 void ShellDelegateImpl::Exit() {
   base::MessageLoop::current()->QuitWhenIdle();
 }
 
 keyboard::KeyboardUI* ShellDelegateImpl::CreateKeyboardUI() {
   return new TestKeyboardUI;
 }
 
 void ShellDelegateImpl::OpenUrlFromArc(const GURL& url) {}
 
-ShelfDelegate* ShellDelegateImpl::CreateShelfDelegate(ShelfModel* model) {
-  return new test::TestShelfDelegate();
-}
-
 SystemTrayDelegate* ShellDelegateImpl::CreateSystemTrayDelegate() {
   return new DefaultSystemTrayDelegate;
 }
 
 std::unique_ptr<WallpaperDelegate>
 ShellDelegateImpl::CreateWallpaperDelegate() {
   return base::MakeUnique<DefaultWallpaperDelegate>();
 }
 
 SessionStateDelegate* ShellDelegateImpl::CreateSessionStateDelegate() {
@@ skipping 31 matching lines @@
   return true;
 }
 
 void ShellDelegateImpl::SetTouchscreenEnabledInPrefs(bool enabled,
                                                      bool use_local_state) {}
 
 void ShellDelegateImpl::UpdateTouchscreenStatusFromPrefs() {}
 
 }  // namespace shell
 }  // namespace ash