Revert of Make WindowState::CanMinimize() take into account WidgetDelegate::CanMinimize()

ash/wm/toplevel_window_event_handler_unittest.cc

Index: ash/wm/toplevel_window_event_handler_unittest.cc
diff --git a/ash/wm/toplevel_window_event_handler_unittest.cc b/ash/wm/toplevel_window_event_handler_unittest.cc
index 7f3782a0d7710de4e1d90717bdcf95d0135b82e1..7c4f4d6450becd5d55bd07cb74aefda58249f50c 100644
--- a/ash/wm/toplevel_window_event_handler_unittest.cc
+++ b/ash/wm/toplevel_window_event_handler_unittest.cc
@@ -8,6 +8,7 @@
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
+#include "ash/wm/lock_state_controller.h"
 #include "ash/wm/resize_shadow.h"
 #include "ash/wm/resize_shadow_controller.h"
 #include "ash/wm/window_state.h"
@@ -467,16 +468,24 @@
             window_state->GetRestoreBoundsInScreen().ToString());
 }
 
-// Tests that a gesture cannot minimize an unminimizeable window.
-TEST_F(ToplevelWindowEventHandlerTest,
-       GestureAttemptMinimizeUnminimizeableWindow) {
+// Tests that a gesture cannot minimize a window in login/lock screen.
+TEST_F(ToplevelWindowEventHandlerTest, GestureDragMinimizeLoginScreen) {
+  LockStateController* state_controller =
+      Shell::GetInstance()->lock_state_controller();
+  state_controller->OnLoginStateChanged(user::LOGGED_IN_NONE);
+  state_controller->OnLockStateChanged(false);
+  SetUserLoggedIn(false);
+
   scoped_ptr<aura::Window> target(CreateWindow(HTCAPTION));
+  aura::Window* lock =
+      RootWindowController::ForWindow(target.get())
+          ->GetContainer(kShellWindowId_LockSystemModalContainer);
+  lock->AddChild(target.get());
   ui::test::EventGenerator generator(Shell::GetPrimaryRootWindow(),
                                      target.get());
   gfx::Rect old_bounds = target->bounds();
   gfx::Point location(5, 5);
   target->SetProperty(aura::client::kCanMaximizeKey, true);
-  target->SetProperty(aura::client::kCanMinimizeKey, false);
 
   gfx::Point end = location;
   end.Offset(0, 100);