Update apps grid view layout to match latest mocks.

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 53a140145d7a442e076272def3bb9875dcbc289b..e5e49b82710f39d46669920a4219b9caf413bb7a 100644
--- a/ui/app_list/app_list_constants.cc
+++ b/ui/app_list/app_list_constants.cc
@@ -98,8 +98,13 @@ const int kExperimentalPreferredRows = 4;
 // Radius of the circle, in which if entered, show re-order preview.
 const int kReorderDroppingCircleRadius = 35;
 
-// The padding around the outside of the experimental app list (top and sides).
-const int kExperimentalWindowPadding = 24;
+// The padding around the outside of the experimental app list apps grid
+// (sides).
+const int kExperimentalAppsGridPadding = 24;
+
+// The padding around the outside of the experimental app list search box (top
+// and sides).
+const int kExperimentalSearchBoxPadding = 16;
 
 // Max items allowed in a folder.
 size_t kMaxFolderItems = 16;