Revert of Introduce a type of View background that stays in sync with its host

ash/system/tray_accessibility.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/system/tray_accessibility.h"
 
 #include "ash/accessibility_delegate.h"
 #include "ash/accessibility_types.h"
 #include "ash/resources/vector_icons/vector_icons.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell_port.h"
 #include "ash/strings/grit/ash_strings.h"
 #include "ash/system/tray/hover_highlight_view.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_controller.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_details_view.h"
 #include "ash/system/tray/tray_item_more.h"
 #include "ash/system/tray/tray_popup_item_style.h"
 #include "ash/system/tray/tray_popup_utils.h"
 #include "ash/system/tray/tri_view.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/paint_vector_icon.h"
-#include "ui/native_theme/native_theme.h"
 #include "ui/resources/grit/ui_resources.h"
 #include "ui/views/background.h"
 #include "ui/views/controls/button/custom_button.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/separator.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/grid_layout.h"
 #include "ui/views/widget/widget.h"
 
@@ skipping 83 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(DefaultAccessibilityView);
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 // ash::tray::AccessibilityPopupView
 
 AccessibilityPopupView::AccessibilityPopupView(uint32_t enabled_state_bits)
     : label_(CreateLabel(enabled_state_bits)) {}
 
 void AccessibilityPopupView::Init() {
-  set_background(views::Background::CreateThemedSolidBackground(
-      this, ui::NativeTheme::kColorId_BubbleBackground));
+  set_background(views::Background::CreateSolidBackground(kBackgroundColor));
 
   views::GridLayout* layout = new views::GridLayout(this);
   SetLayoutManager(layout);
 
   views::ImageView* close_button = new views::ImageView();
   close_button->SetImage(
       ResourceBundle::GetSharedInstance().GetImageSkiaNamed(IDR_MESSAGE_CLOSE));
   close_button->SetHorizontalAlignment(views::ImageView::CENTER);
   close_button->SetVerticalAlignment(views::ImageView::CENTER);
 
@@ skipping 413 matching lines @@
     if (detailed_popup_)
       detailed_popup_->GetWidget()->Close();
     if (detailed_menu_)
       detailed_menu_->GetWidget()->Close();
   }
 
   previous_accessibility_state_ = accessibility_state;
 }
 
 }  // namespace ash