Use EnablePlayStoreAppSearch feature flag.

ui/app_list/views/search_result_tile_item_view.cc

Index: ui/app_list/views/search_result_tile_item_view.cc
diff --git a/ui/app_list/views/search_result_tile_item_view.cc b/ui/app_list/views/search_result_tile_item_view.cc
index 61f27dc21305de74c6a503f21ece5d7e660cf6ec..a479d3e0e8dd7326249ce0fd68d8ecc4dd656c03 100644
--- a/ui/app_list/views/search_result_tile_item_view.cc
+++ b/ui/app_list/views/search_result_tile_item_view.cc
@@ -36,12 +36,13 @@ SearchResultTileItemView::SearchResultTileItemView(
     AppListViewDelegate* view_delegate)
     : result_container_(result_container),
       view_delegate_(view_delegate),
-      is_fullscreen_app_list_enabled_(features::IsFullscreenAppListEnabled()) {
+      is_play_store_app_search_enabled_(
+          features::IsPlayStoreAppSearchEnabled()) {
   // When |item_| is null, the tile is invisible. Calling SetSearchResult with a
   // non-null item makes the tile visible.
   SetVisible(false);
 
-  if (is_fullscreen_app_list_enabled_) {
+  if (is_play_store_app_search_enabled_) {
     const gfx::FontList& base_font =
         ui::ResourceBundle::GetSharedInstance().GetFontList(
             ui::ResourceBundle::BaseFont);
@@ -91,7 +92,7 @@ void SearchResultTileItemView::SetSearchResult(SearchResult* item) {
   SetRating(item_->rating());
   SetPrice(item_->formatted_price());
 
-  if (is_fullscreen_app_list_enabled_) {
+  if (is_play_store_app_search_enabled_) {
     const gfx::FontList& base_font =
         ui::ResourceBundle::GetSharedInstance().GetFontList(
             ui::ResourceBundle::BaseFont);
@@ -212,7 +213,7 @@ void SearchResultTileItemView::Layout() {
   if (rect.IsEmpty())
     return;
 
-  if (!is_fullscreen_app_list_enabled_ || !item_) {
+  if (!is_play_store_app_search_enabled_ || !item_) {
     TileItemView::Layout();
     return;
   }
@@ -262,7 +263,7 @@ void SearchResultTileItemView::Layout() {
 }
 
 gfx::Size SearchResultTileItemView::CalculatePreferredSize() const {
-  if (is_fullscreen_app_list_enabled_ && item_) {
+  if (is_play_store_app_search_enabled_ && item_) {
     if (item_->display_type() == SearchResult::DISPLAY_RECOMMENDATION)
       return gfx::Size(kGridTileWidth, kGridTileHeight);
     if (item_->display_type() == SearchResult::DISPLAY_TILE)