Moves Shell::ShowShelf() to WmShell

ash/shell.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.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 
@@ skipping 333 matching lines @@
   if (keyboard::KeyboardController::GetInstance()) {
     RootWindowControllerList controllers = GetAllRootWindowControllers();
     for (RootWindowControllerList::iterator iter = controllers.begin();
          iter != controllers.end(); ++iter) {
       (*iter)->DeactivateKeyboard(keyboard::KeyboardController::GetInstance());
     }
   }
   keyboard::KeyboardController::ResetInstance(nullptr);
 }
 
-void Shell::ShowShelf() {
-  RootWindowControllerList controllers = GetAllRootWindowControllers();
-  for (RootWindowControllerList::iterator iter = controllers.begin();
-       iter != controllers.end(); ++iter)
-    (*iter)->ShowShelf();
-}
-
 #if defined(OS_CHROMEOS)
 bool Shell::ShouldSaveDisplaySettings() {
   return !(
       screen_orientation_controller_->ignore_display_configuration_updates() ||
       resolution_notification_controller_->DoesNotificationTimeout());
 }
 #endif
 
 void Shell::UpdateShelfVisibility() {
   for (WmWindow* root : wm_shell_->GetAllRootWindows())
@@ skipping 552 matching lines @@
 std::unique_ptr<ui::EventTargetIterator> Shell::GetChildIterator() const {
   return std::unique_ptr<ui::EventTargetIterator>();
 }
 
 ui::EventTargeter* Shell::GetEventTargeter() {
   NOTREACHED();
   return nullptr;
 }
 
 }  // namespace ash