ash: Add support for additional icons in apps search list.

ui/app_list/search_result.cc

Index: ui/app_list/search_result.cc
diff --git a/ui/app_list/search_result.cc b/ui/app_list/search_result.cc
index b0704fb3654ffda2757571bc1055bd2dc765fe01..5d5e6b5b53b5e42b0151cbe07fd16818af2d0d3b 100644
--- a/ui/app_list/search_result.cc
+++ b/ui/app_list/search_result.cc
@@ -21,6 +21,13 @@ void SearchResult::SetIcon(const gfx::ImageSkia& icon) {
                     OnIconChanged());
 }
 
+void SearchResult::SetActionIcons(const std::vector<ActionIconSet>& sets) {
+  action_icons_ = sets;
+  FOR_EACH_OBSERVER(SearchResultObserver,
+                    observers_,
+                    OnActionIconsChanged());
+}
+
 void SearchResult::AddObserver(SearchResultObserver* observer) {
   observers_.AddObserver(observer);
 }