Added Ash.SystemMenu.DefaultView.VisibleItems histogram.

ash/common/system/audio/volume_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/audio/volume_view.h"
 
 #include "ash/common/ash_constants.h"
 #include "ash/common/metrics/user_metrics_action.h"
 #include "ash/common/system/audio/tray_audio.h"
 #include "ash/common/system/audio/tray_audio_delegate.h"
@@ skipping 124 matching lines @@
       views::Border::CreateEmptyBorder(0, 0, 0, kTrayPopupPaddingBetweenItems));
   AddChildView(slider_);
   box_layout->SetFlexForView(slider_, 1);
 
   separator_ = new views::Separator(views::Separator::VERTICAL);
   separator_->SetColor(kButtonStrokeColor);
   separator_->SetPreferredSize(kSeparatorSize);
   separator_->SetBorder(views::Border::CreateEmptyBorder(
       kSeparatorVerticalInset, 0, kSeparatorVerticalInset, kBoxLayoutPadding));
 
-  more_region_ = new TrayPopupItemContainer(separator_, true, false);
+  more_region_ = new TrayPopupItemContainer(separator_, true);
   more_region_->SetBorder(
       views::Border::CreateEmptyBorder(0, 0, 0, kTrayPopupPaddingBetweenItems));
   AddChildView(more_region_);
 
   device_type_ = new views::ImageView;
   more_region_->AddChildView(device_type_);
 
   more_ = new views::ImageView;
   more_->EnableCanvasFlippingForRTLUI(true);
   more_->SetImage(ui::ResourceBundle::GetSharedInstance()
@@ skipping 124 matching lines @@
   separator_->SetSize(gfx::Size(kSeparatorSize, bounds().height()));
 }
 
 void VolumeView::GetAccessibleState(ui::AXViewState* state) {
   // Intentionally overrides ActionableView, leaving |state| unset. A slider
   // childview exposes accessibility data.
 }
 
 }  // namespace tray
 }  // namespace ash