Fix a leak in wm::AnimateOnChildWindowVisibilityChanged().

ash/wm/window_animations_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/wm/window_animations.h"
 
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/window_state.h"
 #include "ash/wm/workspace_controller.h"
@@ skipping 77 matching lines @@
   EXPECT_TRUE(window->layer()->visible());
 
   // Stays shown.
   window->layer()->GetAnimator()->Step(base::TimeTicks::Now() +
                                        base::TimeDelta::FromSeconds(5));
   EXPECT_EQ(0.0f, window->layer()->GetTargetBrightness());
   EXPECT_EQ(0.0f, window->layer()->GetTargetGrayscale());
   EXPECT_TRUE(window->layer()->visible());
 }
 
+TEST_F(WindowAnimationsTest, HideRotateAnimationNoLeak) {
+  scoped_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
+  window->Show();
+  ::wm::SetWindowVisibilityAnimationType(
+      window.get(),
+      ::wm::WINDOW_VISIBILITY_ANIMATION_TYPE_ROTATE);
+
+  // Should not leak with LSAN enabled.
+  EXPECT_NO_FATAL_FAILURE(
+      AnimateOnChildWindowVisibilityChanged(window.get(), false));
+}
+
 TEST_F(WindowAnimationsTest, LayerTargetVisibility) {
   scoped_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
 
   // Layer target visibility changes according to Show/Hide.
   window->Show();
   EXPECT_TRUE(window->layer()->GetTargetVisibility());
   window->Hide();
   EXPECT_FALSE(window->layer()->GetTargetVisibility());
   window->Show();
   EXPECT_TRUE(window->layer()->GetTargetVisibility());
@@ skipping 129 matching lines @@
     EXPECT_TRUE(layer->GetAnimator()->is_animating());
     // Expect default duration (200ms for stock ash minimizing animation).
     EXPECT_EQ(default_duration.InMilliseconds(),
               layer->GetAnimator()->GetTransitionDuration().InMilliseconds());
     window->Show();
     layer->GetAnimator()->StopAnimating();
   }
 }
 
 }  // namespace ash