Allow app list tiles to show search results in the experimental app list.

ui/app_list/views/tile_item_view.h

Index: ui/app_list/views/tile_item_view.h
diff --git a/ui/app_list/views/tile_item_view.h b/ui/app_list/views/tile_item_view.h
index e319915abbc8774afb844b1d0403e5a07e81bf9d..2f6cefdf732e13405753c7de143fde62aa4a6d3e 100644
--- a/ui/app_list/views/tile_item_view.h
+++ b/ui/app_list/views/tile_item_view.h
@@ -6,6 +6,7 @@
 #define UI_APP_LIST_VIEWS_TILE_ITEM_VIEW_H_
 
 #include "ui/app_list/app_list_export.h"
+#include "ui/app_list/search_result_observer.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/controls/button/custom_button.h"
 
@@ -16,16 +17,17 @@ class Label;
 
 namespace app_list {
 
-class AppListItem;
+class SearchResult;
 
 // The view for a tile in the app list on the start/search page.
 class APP_LIST_EXPORT TileItemView : public views::CustomButton,
-                                     public views::ButtonListener {
+                                     public views::ButtonListener,
+                                     public SearchResultObserver {
  public:
   TileItemView();
   virtual ~TileItemView();
 
-  void SetAppListItem(AppListItem* item);
+  void SetSearchResult(SearchResult* item);
 
  private:
   class TileItemBackground;
@@ -37,8 +39,12 @@ class APP_LIST_EXPORT TileItemView : public views::CustomButton,
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
 
+  // Overridden from SearchResultObserver:
+  virtual void OnIconChanged() OVERRIDE;
+  virtual void OnResultDestroying() OVERRIDE;
+
   // Owned by the model provided by the AppListViewDelegate.
-  AppListItem* item_;
+  SearchResult* item_;
 
   views::ImageView* icon_;  // Owned by views hierarchy.
   views::Label* title_;     // Owned by views hierarchy.