Show Play Store rating and price in app list

ui/app_list/views/search_result_tile_item_view.h

Index: ui/app_list/views/search_result_tile_item_view.h
diff --git a/ui/app_list/views/search_result_tile_item_view.h b/ui/app_list/views/search_result_tile_item_view.h
index 3f5ff19fe4083c32a2f2186e685041435dc2b60c..6d0525a8bb330f7039541e4dde4d3fba7510d456 100644
--- a/ui/app_list/views/search_result_tile_item_view.h
+++ b/ui/app_list/views/search_result_tile_item_view.h
@@ -40,6 +40,8 @@ class APP_LIST_EXPORT SearchResultTileItemView
   // Overridden from SearchResultObserver:
   void OnIconChanged() override;
   void OnBadgeIconChanged() override;
+  void OnRatingChanged() override;
+  void OnPriceChanged() override;
   void OnResultDestroying() override;
 
   // views::ContextMenuController overrides:
@@ -48,6 +50,13 @@ class APP_LIST_EXPORT SearchResultTileItemView
                               ui::MenuSourceType source_type) override;
 
  private:
+  // Shows rating in proper format if |rating| is not negative. Otherwise, hides
+  // the rating label.
+  void SetRating(float rating);
+
+  // Shows price if |price| is not empty. Otherwise, hides the price label.
+  void SetPrice(const base::string16& price);
+
   // Overridden from views::View:
   void Layout() override;
   gfx::Size CalculatePreferredSize() const override;
@@ -57,6 +66,9 @@ class APP_LIST_EXPORT SearchResultTileItemView
   // Owned by the model provided by the AppListViewDelegate.
   SearchResult* item_;
 
+  views::Label* rating_;  // Owned by views hierarchy.
+  views::Label* price_;   // Owned by views hierarchy.

[xiyuan, 2017/06/22 17:07:34]

nit: forward declare views::Label.

Slightly prefer to initialize members in header. Would you mind move them here
(these two and |item_|)?

[weidongg, 2017/06/22 17:58:30]

Done.

+
   AppListViewDelegate* view_delegate_;
 
   const bool is_fullscreen_app_list_enabled_;