ash: Remove unnecessary utility methods from ash::Shelf

ash/shelf/shelf_widget.cc

 // Copyright 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/shelf/shelf_widget.h"
 
 #include "ash/common/focus_cycler.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/shelf_background_animator_observer.h"
@@ skipping 440 matching lines @@
 
 bool ShelfWidget::IsShelfVisible() const {
   return shelf_view_ && shelf_view_->visible();
 }
 
 void ShelfWidget::SetShelfVisibility(bool visible) {
   if (shelf_view_)
     shelf_view_->SetVisible(visible);
 }
 
+bool ShelfWidget::IsShowingContextMenu() const {
+  return shelf_view_ && shelf_view_->IsShowingMenu();
+}
+
+bool ShelfWidget::IsShowingOverflowBubble() const {
+  return shelf_view_ && shelf_view_->IsShowingOverflowBubble();
+}
+
 void ShelfWidget::SetFocusCycler(FocusCycler* focus_cycler) {
   delegate_view_->set_focus_cycler(focus_cycler);
   if (focus_cycler)
     focus_cycler->AddWidget(this);
 }
 
 FocusCycler* ShelfWidget::GetFocusCycler() {
   return delegate_view_->focus_cycler();
 }
 
@@ skipping 51 matching lines @@
   if (shelf_view_)
     shelf_view_->UpdateShelfItemBackground(alpha);
 }
 
 void ShelfWidget::WillDeleteShelfLayoutManager() {
   shelf_layout_manager_->RemoveObserver(this);
   shelf_layout_manager_ = nullptr;
 }
 
 }  // namespace ash