Revert of Linux Aura: Make tab dragging great again

ui/views/widget/desktop_aura/x11_desktop_window_move_client_managed.h

-// Copyright 2016 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_VIEWS_WIDGET_DESKTOP_AURA_X11_DESKTOP_WINDOW_MOVE_CLIENT_MANAGED_H_
-#define UI_VIEWS_WIDGET_DESKTOP_AURA_X11_DESKTOP_WINDOW_MOVE_CLIENT_MANAGED_H_
-
-#include "base/callback.h"
-#include "base/memory/weak_ptr.h"
-#include "ui/events/platform/platform_event_dispatcher.h"
-#include "ui/views/views_export.h"
-#include "ui/wm/public/window_move_client.h"
-
-typedef unsigned long XID;
-
-namespace ui {
-class ScopedEventDispatcher;
-}
-
-namespace views {
-
-class VIEWS_EXPORT X11DesktopWindowMoveClientManaged
-    : public aura::client::WindowMoveClient,
-      public ui::PlatformEventDispatcher {
- public:
-  X11DesktopWindowMoveClientManaged();
-  ~X11DesktopWindowMoveClientManaged() override;
-
-  // Overridden from ui::PlatformEventDispatcher:
-  bool CanDispatchEvent(const ui::PlatformEvent& event) override;
-  uint32_t DispatchEvent(const ui::PlatformEvent& event) override;
-
-  // Overridden from aura::client::WindowMoveClient:
-  aura::client::WindowMoveResult RunMoveLoop(
-      aura::Window* window,
-      const gfx::Vector2d& drag_offset,
-      aura::client::WindowMoveSource move_source) override;
-  void EndMoveLoop() override;
-
- private:
-  // Are we running a nested message loop from RunMoveLoop()?
-  bool in_move_loop_;
-  std::unique_ptr<ui::ScopedEventDispatcher> nested_dispatcher_;
-
-  XID window_;
-
-  base::Closure quit_closure_;
-
-  base::WeakPtrFactory<X11DesktopWindowMoveClientManaged> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(X11DesktopWindowMoveClientManaged);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_X11_DESKTOP_WINDOW_MOVE_CLIENT_MANAGED_H_