Rework app list item drag zones.

ui/app_list/views/app_list_main_view_unittest.cc

Index: ui/app_list/views/app_list_main_view_unittest.cc
diff --git a/ui/app_list/views/app_list_main_view_unittest.cc b/ui/app_list/views/app_list_main_view_unittest.cc
index d59e45f2097ed0b131da950f8c0417a908b33b99..0091e06f2023d53b93107425062a5e6e6ead484c 100644
--- a/ui/app_list/views/app_list_main_view_unittest.cc
+++ b/ui/app_list/views/app_list_main_view_unittest.cc
@@ -261,7 +261,7 @@ TEST_F(AppListMainViewTest, DragLastItemFromFolderAndDropAtLastSlot) {
 
   // Drop it to the slot on the right of first slot.
   gfx::Rect drop_target_tile(first_slot_tile);
-  drop_target_tile.Offset(first_slot_tile.width(), 0);
+  drop_target_tile.Offset(first_slot_tile.width() * 2, 0);
   gfx::Point point = drop_target_tile.CenterPoint();
   SimulateUpdateDrag(FolderGridView(), AppsGridView::MOUSE, dragged, point);
   SimulateUpdateDrag(FolderGridView(), AppsGridView::MOUSE, dragged, point);