Reuse the code within UpdateCheckMark()

ash/common/system/chromeos/audio/audio_detailed_view.cc

 // Copyright 2014 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/chromeos/audio/audio_detailed_view.h"
 
 #include "ash/common/system/tray/hover_highlight_view.h"
 #include "ash/common/system/tray/tray_popup_utils.h"
 #include "ash/common/system/tray/tri_view.h"
 #include "ash/resources/vector_icons/vector_icons.h"
@@ skipping 92 matching lines @@
   scroll_content()->AddChildView(header);
 }
 
 HoverHighlightView* AudioDetailedView::AddScrollListItem(
     const base::string16& text,
     bool highlight,
     bool checked) {
   HoverHighlightView* container = new HoverHighlightView(this);
 
   container->AddLabelRow(text);
-  if (checked) {
-    gfx::ImageSkia check_mark =
-        gfx::CreateVectorIcon(kCheckCircleIcon, gfx::kGoogleGreen700);
-    container->AddRightIcon(check_mark, check_mark.width());
-    container->SetRightViewVisible(true);
-    container->SetAccessiblityState(
-        HoverHighlightView::AccessibilityState::CHECKED_CHECKBOX);
-  } else {
-    container->SetAccessiblityState(
-        HoverHighlightView::AccessibilityState::UNCHECKED_CHECKBOX);
-  }
+  TrayPopupUtils::InitializeAsCheckableRow(container, checked);
 
   scroll_content()->AddChildView(container);
   return container;
 }
 
 void AudioDetailedView::CreateItems() {
   CreateScrollableList();
   CreateTitleRow(IDS_ASH_STATUS_TRAY_AUDIO);
 }
 
@@ skipping 85 matching lines @@
       audio_handler->HasDualInternalMic()) {
     audio_handler->SwitchToFrontOrRearMic();
   } else {
     audio_handler->SwitchToDevice(device, true,
                                   CrasAudioHandler::ACTIVATE_BY_USER);
   }
 }
 
 }  // namespace tray
 }  // namespace ash