It is time.

ui/compositor/test/test_layer_animation_observer.h

Index: ui/compositor/test/test_layer_animation_observer.h
diff --git a/ui/compositor/test/test_layer_animation_observer.h b/ui/compositor/test/test_layer_animation_observer.h
deleted file mode 100644
index 0f0a18ecd39c88ef665eb85aecb87ccf64c795e4..0000000000000000000000000000000000000000
--- a/ui/compositor/test/test_layer_animation_observer.h
+++ /dev/null
@@ -1,57 +0,0 @@
-// 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.
-
-#ifndef UI_COMPOSITOR_TEST_TEST_LAYER_ANIMATION_OBSERVER_H_
-#define UI_COMPOSITOR_TEST_TEST_LAYER_ANIMATION_OBSERVER_H_
-
-#include "base/compiler_specific.h"
-#include "ui/compositor/layer_animation_observer.h"
-
-namespace ui {
-
-class LayerAnimationSequence;
-
-// Listens to animation ended notifications. Remembers the last sequence that
-// it was notified about.
-class TestLayerAnimationObserver : public LayerAnimationObserver {
- public:
-  TestLayerAnimationObserver();
-  ~TestLayerAnimationObserver() override;
-
-  void OnLayerAnimationEnded(LayerAnimationSequence* sequence) override;
-
-  void OnLayerAnimationAborted(LayerAnimationSequence* sequence) override;
-
-  void OnLayerAnimationScheduled(LayerAnimationSequence* sequence) override;
-
-  bool RequiresNotificationWhenAnimatorDestroyed() const override;
-
-  const LayerAnimationSequence* last_ended_sequence() const {
-    return last_ended_sequence_;
-  }
-
-  const LayerAnimationSequence* last_scheduled_sequence() const {
-    return last_scheduled_sequence_;
-  }
-
-  const LayerAnimationSequence* last_aborted_sequence() const {
-    return last_aborted_sequence_;
-  }
-
-  void set_requires_notification_when_animator_destroyed(bool value) {
-    requires_notification_when_animator_destroyed_ = value;
-  }
-
- private:
-  const LayerAnimationSequence* last_ended_sequence_;
-  const LayerAnimationSequence* last_scheduled_sequence_;
-  const LayerAnimationSequence* last_aborted_sequence_;
-  bool requires_notification_when_animator_destroyed_;
-
-  // Copy and assign are allowed.
-};
-
-}  // namespace ui
-
-#endif  // UI_COMPOSITOR_TEST_TEST_LAYER_ANIMATION_OBSERVER_H_