Move shelf item tooltip flag from delegate to item.

ash/wm/dock/docked_window_resizer_unittest.cc

Index: ash/wm/dock/docked_window_resizer_unittest.cc
diff --git a/ash/wm/dock/docked_window_resizer_unittest.cc b/ash/wm/dock/docked_window_resizer_unittest.cc
index c3e56e691b0f89d9de298e341d9d9aa20087c1c7..86e4a78182a111369ef2c855bf9e4382a1bf03ee 100644
--- a/ash/wm/dock/docked_window_resizer_unittest.cc
+++ b/ash/wm/dock/docked_window_resizer_unittest.cc
@@ -22,6 +22,7 @@
 #include "ash/test/ash_test_base.h"
 #include "ash/test/cursor_manager_test_api.h"
 #include "ash/wm/drag_window_resizer.h"
+#include "ash/wm/window_properties.h"
 #include "ash/wm/window_state_aura.h"
 #include "ash/wm/window_util.h"
 #include "base/command_line.h"
@@ -1307,7 +1308,7 @@ TEST_P(DockedWindowResizerTest, DragToShelf) {
   if (test_panels()) {
     // The panel should be touching the shelf and attached.
     EXPECT_EQ(shelf_y, w1->bounds().bottom());
-    EXPECT_TRUE(wm::GetWindowState(w1.get())->panel_attached());
+    EXPECT_TRUE(w1->GetProperty(kPanelAttachedKey));
   } else {
     // The window should not be touching the shelf.
     EXPECT_EQ(shelf_y - kDistanceFromShelf, w1->bounds().bottom());