Reset the background of title label when selected by arrow keys.

ui/app_list/views/app_list_item_view.h

 // 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.
 
 #ifndef UI_APP_LIST_VIEWS_APP_LIST_ITEM_VIEW_H_
 #define UI_APP_LIST_VIEWS_APP_LIST_ITEM_VIEW_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 63 matching lines @@
   // Returns the icon bounds relative to AppListItemView.
   const gfx::Rect& GetIconBounds() const;
 
   // Sets UI state to dragging state.
   void SetDragUIState();
 
   // Returns the icon bounds for the given |target_bounds| as
   // the assuming bounds of this view.
   gfx::Rect GetIconBoundsForTargetViewBounds(const gfx::Rect& target_bounds);
 
+  // If the item is not in a folder, not highlighted, not being dragged, and not
+  // having something dropped onto it, enables subpixel AA for the title.
+  void SetTitleSubpixelAA();
+
   // views::CustomButton overrides:
   void OnGestureEvent(ui::GestureEvent* event) override;
 
   // views::View overrides:
   bool GetTooltipText(const gfx::Point& p,
                       base::string16* tooltip) const override;
 
  private:
   enum UIState {
     UI_STATE_NORMAL,    // Normal UI (icon + label)
     UI_STATE_DRAGGING,  // Dragging UI (scaled icon only)
     UI_STATE_DROPPING_IN_FOLDER,  // Folder dropping preview UI
   };
 
   // Get icon from |item_| and schedule background processing.
   void UpdateIcon();
 
   // Update the tooltip text from |item_|.
   void UpdateTooltip();
 
   void SetUIState(UIState state);
 
   // Sets |touch_dragging_| flag and updates UI.
   void SetTouchDragging(bool touch_dragging);
 
   // Invoked when |mouse_drag_timer_| fires to show dragging UI.
   void OnMouseDragTimer();
 
-  // If the item is not in a folder, not highlighted, not being dragged, and not
-  // having something dropped onto it, enables subpixel AA for the title.
-  void SetTitleSubpixelAA();
-
   // views::View overrides:
   const char* GetClassName() const override;
   void Layout() override;
   void OnPaint(gfx::Canvas* canvas) override;
 
   // views::ContextMenuController overrides:
   void ShowContextMenuForView(views::View* source,
                               const gfx::Point& point,
                               ui::MenuSourceType source_type) override;
 
@@ skipping 39 matching lines @@
 
   // A timer to defer showing drag UI when mouse is pressed.
   base::OneShotTimer<AppListItemView> mouse_drag_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListItemView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_VIEWS_APP_LIST_ITEM_VIEW_H_