Show separator in SearchResultTileItemListView

ui/app_list/app_list_constants.cc

Index: ui/app_list/app_list_constants.cc
diff --git a/ui/app_list/app_list_constants.cc b/ui/app_list/app_list_constants.cc
index 1a71df40b4f683a7f563ad243289f4c9a9ef6dbc..f563009ed873b7d4373791ad895de08772cbf76a 100644
--- a/ui/app_list/app_list_constants.cc
+++ b/ui/app_list/app_list_constants.cc
@@ -147,6 +147,9 @@ const char kSearchQueryLength[] = "Apps.AppListSearchQueryLength";
 const char kSearchResultDistanceFromOrigin[] =
     "Apps.AppListSearchResultDistanceFromOrigin";
 
+// The height of tiles in search result.
+const int kSearchTileHeight = 92;
+
 gfx::ShadowValue GetShadowForZHeight(int z_height) {
   if (z_height <= 0)
     return gfx::ShadowValue();