Modify Ash MD system menu layout for title rows

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 views {
-class Button;
-class ButtonListener;
-class CustomButton;
-class Label;
-class ToggleButton;
-}
-
 namespace ash {
-class SystemMenuButton;
 class ThrobberView;
 class TrayItemView;
 class TrayPopupHeaderButton;
 class ViewClickListener;
 
-// For material design, this class represents the top title row for detailed
-// views and handles the creation and layout of its elements (back button,
-// title, settings button, and possibly other buttons). For non-MD, 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.
+// 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.
-  // TODO(tdanderson): Make this private when material design is enabled by
-  // default. See crbug.com/614453.
   void SetContent(views::View* view);
 
-  // Creates UI elements for the material design title row and adds them to
-  // the view hierarchy rooted at |this|. Returns a pointer to the created
-  // view.
-  views::Button* AddBackButton(views::ButtonListener* listener);
-  views::CustomButton* AddSettingsButton(views::ButtonListener* listener,
-                                         LoginStatus status);
-  views::CustomButton* AddHelpButton(views::ButtonListener* listener,
-                                     LoginStatus status);
-  views::ToggleButton* AddToggleButton(views::ButtonListener* listener);
-
   // 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.
-  // TODO(tdanderson): Remove this when material design is enabled by default.
-  // See crbug.com/614453.
   void AddViewToRowNonMd(views::View* view, bool add_separator);
 
-  // TODO(tdanderson): Remove this accessor when material design is enabled by
-  // default. See crbug.com/614453.
   views::View* content() const { return content_; }
 
  private:
   // views::View:
   gfx::Size GetPreferredSize() const override;
   int GetHeightForWidth(int width) const override;
   void Layout() override;
-  void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
 
-  // Updates the style of |label_|, if it exists. Only used in material design.
-  void UpdateStyle();
-
-  // Used to add views to |views_before_content_container_| and
-  // |views_after_content_container_|, respectively. Views are added to both
-  // containers in a left-to-right order.
-  void AddViewBeforeContent(views::View* view);
+  // 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);
 
-  void SetTextLabelMd(int string_id, ViewClickListener* listener);
-  void SetTextLabelNonMd(int string_id, ViewClickListener* listener);
-
-  // The container for the views positioned before |content_|.
-  views::View* views_before_content_container_;
-
   // 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_;
 
-  // A pointer to the label which is parented to |content_|; this is non-null
-  // only if this row's content is a single label. Not owned.
-  views::Label* label_;
-
   DISALLOW_COPY_AND_ASSIGN(SpecialPopupRow);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_TRAY_SPECIAL_POPUP_ROW_H_