It is time.

ui/aura/window_tree_host_ozone.h

Index: ui/aura/window_tree_host_ozone.h
diff --git a/ui/aura/window_tree_host_ozone.h b/ui/aura/window_tree_host_ozone.h
deleted file mode 100644
index f0e8c985a73c4fefcfd7eb33e7d2a9c1f613abb6..0000000000000000000000000000000000000000
--- a/ui/aura/window_tree_host_ozone.h
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright 2013 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_AURA_WINDOW_TREE_HOST_OZONE_H_
-#define UI_AURA_WINDOW_TREE_HOST_OZONE_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "ui/aura/window_tree_host.h"
-#include "ui/events/event_source.h"
-#include "ui/gfx/rect.h"
-#include "ui/platform_window/platform_window_delegate.h"
-
-namespace ui {
-class PlatformWindow;
-}
-
-namespace aura {
-
-class AURA_EXPORT WindowTreeHostOzone : public WindowTreeHost,
-                                        public ui::EventSource,
-                                        public ui::PlatformWindowDelegate {
- public:
-  explicit WindowTreeHostOzone(const gfx::Rect& bounds);
-  virtual ~WindowTreeHostOzone();
-
- private:
-  // ui::PlatformWindowDelegate:
-  virtual void OnBoundsChanged(const gfx::Rect&) override;
-  virtual void OnDamageRect(const gfx::Rect& damaged_region) override;
-  virtual void DispatchEvent(ui::Event* event) override;
-  virtual void OnCloseRequest() override;
-  virtual void OnClosed() override;
-  virtual void OnWindowStateChanged(ui::PlatformWindowState new_state) override;
-  virtual void OnLostCapture() override;
-  virtual void OnAcceleratedWidgetAvailable(
-      gfx::AcceleratedWidget widget) override;
-  virtual void OnActivationChanged(bool active) override;
-
-  // WindowTreeHost:
-  virtual ui::EventSource* GetEventSource() override;
-  virtual gfx::AcceleratedWidget GetAcceleratedWidget() override;
-  virtual void Show() override;
-  virtual void Hide() override;
-  virtual gfx::Rect GetBounds() const override;
-  virtual void SetBounds(const gfx::Rect& bounds) override;
-  virtual gfx::Point GetLocationOnNativeScreen() const override;
-  virtual void SetCapture() override;
-  virtual void ReleaseCapture() override;
-  virtual void PostNativeEvent(const base::NativeEvent& event) override;
-  virtual void SetCursorNative(gfx::NativeCursor cursor_type) override;
-  virtual void MoveCursorToNative(const gfx::Point& location) override;
-  virtual void OnCursorVisibilityChangedNative(bool show) override;
-
-  // ui::EventSource overrides.
-  virtual ui::EventProcessor* GetEventProcessor() override;
-
-  // Platform-specific part of this WindowTreeHost.
-  scoped_ptr<ui::PlatformWindow> platform_window_;
-
-  // The identifier used to create a compositing surface.
-  gfx::AcceleratedWidget widget_;
-
-  DISALLOW_COPY_AND_ASSIGN(WindowTreeHostOzone);
-};
-
-}  // namespace aura
-
-#endif  // UI_AURA_WINDOW_TREE_HOST_OZONE_H_