Remove pre-MD code from TrayDetailsView.

ash/common/system/tray/special_popup_row.h

-// Copyright (c) 2013 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.
-
-#ifndef ASH_COMMON_SYSTEM_TRAY_SPECIAL_POPUP_ROW_H_
-#define ASH_COMMON_SYSTEM_TRAY_SPECIAL_POPUP_ROW_H_
-
-#include "ash/ash_export.h"
-#include "ash/common/login_status.h"
-#include "ash/resources/vector_icons/vector_icons.h"
-#include "base/macros.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/views/view.h"
-
-namespace ash {
-class ViewClickListener;
-
-// Not used in material design. This class represents the bottom row of
-// detailed views and the bottom row of the system menu (date, help, power,
-// and lock). This row has a fixed height.
-// TODO(tdanderson): Remove this class when material design is enabled by
-// default. See crbug.com/614453.
-class ASH_EXPORT SpecialPopupRow : public views::View {
- public:
-  SpecialPopupRow();
-  ~SpecialPopupRow() override;
-
-  // Creates a text label corresponding to |string_id| and sets it as the
-  // content of this row.
-  void SetTextLabel(int string_id, ViewClickListener* listener);
-
-  // Sets |content_| to be |view| and adds |content_| as a child view of this
-  // row. This should only be called once, upon initialization of the row.
-  void SetContent(views::View* view);
-
-  // Adds |view| after this row's content.
-  void AddViewToTitleRow(views::View* view);
-
-  // Adds |view| after this row's content, optionally with a separator. Only
-  // used for non-MD.
-  void AddViewToRowNonMd(views::View* view, bool add_separator);
-
-  views::View* content() const { return content_; }
-
- private:
-  // views::View:
-  gfx::Size GetPreferredSize() const override;
-  int GetHeightForWidth(int width) const override;
-  void Layout() override;
-
-  // Used to add views to |views_after_content_container_|, respectively. Views
-  // are added in a left-to-right order.
-  void AddViewAfterContent(views::View* view);
-  void AddViewAfterContent(views::View* view, bool add_separator);
-
-  // The main content of this row, typically a label.
-  views::View* content_;
-
-  // The container for the views positioned after |content_|.
-  views::View* views_after_content_container_;
-
-  DISALLOW_COPY_AND_ASSIGN(SpecialPopupRow);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_SYSTEM_TRAY_SPECIAL_POPUP_ROW_H_