Show Play Store rating and price in app list

ui/app_list/search_result.h

Index: ui/app_list/search_result.h
diff --git a/ui/app_list/search_result.h b/ui/app_list/search_result.h
index 1eb49a78ad02f14a2436c3bd0bf5da244caaed8f..e57861f639d9e0ad80034aadbcfaf1d7f14c38f3 100644
--- a/ui/app_list/search_result.h
+++ b/ui/app_list/search_result.h
@@ -113,6 +113,14 @@ class APP_LIST_EXPORT SearchResult {
   const Tags& details_tags() const { return details_tags_; }
   void set_details_tags(const Tags& tags) { details_tags_ = tags; }
 
+  double price() const { return price_; }
+  const base::string16& GetPriceString() const;
+  void SetPrice(double price);

[xiyuan, 2017/06/20 22:19:22]

Is there a way to clear price and rating info? That is, how do we plan to
support the case where price and rating is not available?

[weidongg, 2017/06/22 00:59:16]

Yes, Done.

+
+  double rating() const { return rating_; }
+  const base::string16& GetRatingString() const;
+  void SetRating(double rating);
+
   views::View* view() const { return view_; }
   void set_view(views::View* view) { view_ = view; }
 
@@ -198,6 +206,11 @@ class APP_LIST_EXPORT SearchResult {
   base::string16 details_;
   Tags details_tags_;
 
+  double rating_;  // amount of the app's stars in play store.
+  base::string16 rating_string_;
+  double price_;  // price of the app in play store.
+  base::string16 price_string_;
+
   // Unowned pointer to a view containing a rendered result, or nullptr if there
   // is no such view for the result.
   // The view has set_owned_by_client() property set. It's a responsibility of