Remove non-MD code from AppListButton

ash/common/shelf/app_list_button.h

 // 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.
 
 #ifndef ASH_COMMON_SHELF_APP_LIST_BUTTON_H_
 #define ASH_COMMON_SHELF_APP_LIST_BUTTON_H_
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 10 matching lines @@
   AppListButton(InkDropButtonListener* listener,
                 ShelfView* shelf_view,
                 WmShelf* wm_shelf);
   ~AppListButton() override;
 
   void OnAppListShown();
   void OnAppListDismissed();
 
   bool is_showing_app_list() const { return is_showing_app_list_; }
 
-  bool draw_background_as_active() const { return draw_background_as_active_; }
-
   // Updates background and schedules a paint.
   void UpdateShelfItemBackground(SkColor color);
 
  protected:
   // views::ImageButton overrides:
   bool OnMousePressed(const ui::MouseEvent& event) override;
   void OnMouseReleased(const ui::MouseEvent& event) override;
   void OnMouseCaptureLost() override;
   bool OnMouseDragged(const ui::MouseEvent& event) override;
   void OnPaint(gfx::Canvas* canvas) override;
   void GetAccessibleNodeData(ui::AXNodeData* node_data) override;
   std::unique_ptr<views::InkDropRipple> CreateInkDropRipple() const override;
   void NotifyClick(const ui::Event& event) override;
   bool ShouldEnterPushedState(const ui::Event& event) override;
   std::unique_ptr<views::InkDrop> CreateInkDrop() override;
   std::unique_ptr<views::InkDropMask> CreateInkDropMask() const override;
 
   // ui::EventHandler overrides:
   void OnGestureEvent(ui::GestureEvent* event) override;
 
  private:
-  // Toggles the active state for painting the background and schedules a paint.
-  void SetDrawBackgroundAsActive(bool draw_background_as_active);
-
-  // Helper function to paint the background and foreground of the AppList
-  // button in Chrome OS MD.
-  void PaintMd(gfx::Canvas* canvas);
-
-  // Helper function to paint the AppList button in Chrome OS non-MD.
-  void PaintAppListButton(gfx::Canvas* canvas,
-                          const gfx::ImageSkia& foreground_image);
-
   // Get the center point of the app list button used to draw its background and
   // ink drops.
   gfx::Point GetCenterPoint() const;
 
   // True if the app list is currently showing for this display.
   // This is useful because other IsApplistVisible functions aren't per-display.
   bool is_showing_app_list_;
 
-  // True if the background should render as active, regardless of the state of
-  // the application list.
-  bool draw_background_as_active_;
-
   // Color used to paint the background.
   SkColor background_color_;
 
   InkDropButtonListener* listener_;
   ShelfView* shelf_view_;
   WmShelf* wm_shelf_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListButton);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SHELF_APP_LIST_BUTTON_H_