Cache gfx::RenderText instances in views::Label.

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 94 matching lines @@
   // 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 SchedulePaintInRect(const gfx::Rect& r) override;
   void OnPaint(gfx::Canvas* canvas) override;
 
   // views::ContextMenuController overrides:
   void ShowContextMenuForView(views::View* source,
                               const gfx::Point& point,
                               ui::MenuSourceType source_type) override;
 
   // views::CustomButton overrides:
   void StateChanged() override;
   bool ShouldEnterPushedState(const ui::Event& event) override;
@@ skipping 34 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_