Test aria-pressed=mixed on windows

ash/system/ime_menu/ime_list_view.cc

Index: ash/system/ime_menu/ime_list_view.cc
diff --git a/ash/system/ime_menu/ime_list_view.cc b/ash/system/ime_menu/ime_list_view.cc
index d93455aca0523004442c0005d2fef19e3f1a5e78..b6a32a8ddc1173033bde5ef4b2185148a015ab4c 100644
--- a/ash/system/ime_menu/ime_list_view.cc
+++ b/ash/system/ime_menu/ime_list_view.cc
@@ -124,8 +124,8 @@ class ImeListItemView : public ActionableView {
   void GetAccessibleNodeData(ui::AXNodeData* node_data) override {
     ActionableView::GetAccessibleNodeData(node_data);
     node_data->role = ui::AX_ROLE_CHECK_BOX;
-    const ui::AXCheckedState checked_state =
-        selected_ ? ui::AX_CHECKED_STATE_TRUE : ui::AX_CHECKED_STATE_FALSE;
+    const ui::AXButtonState checked_state =
+        selected_ ? ui::AX_BUTTON_STATE_TRUE : ui::AX_BUTTON_STATE_FALSE;
     node_data->AddIntAttribute(ui::AX_ATTR_CHECKED_STATE, checked_state);
   }