[Refactor]: Move drag_widget_ out of X11WholeScreenMoveLoop

ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h

 // Copyright (c) 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_VIEWS_WIDGET_DESKTOP_AURA_X11_WHOLE_SCREEN_MOVE_LOOP_H_
 #define UI_VIEWS_WIDGET_DESKTOP_AURA_X11_WHOLE_SCREEN_MOVE_LOOP_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 28 matching lines @@
 
   // ui:::PlatformEventDispatcher:
   virtual bool CanDispatchEvent(const ui::PlatformEvent& event) OVERRIDE;
   virtual uint32_t DispatchEvent(const ui::PlatformEvent& event) OVERRIDE;
 
   // X11MoveLoop:
   virtual bool RunMoveLoop(aura::Window* window,
                            gfx::NativeCursor cursor) OVERRIDE;
   virtual void UpdateCursor(gfx::NativeCursor cursor) OVERRIDE;
   virtual void EndMoveLoop() OVERRIDE;
-  virtual void SetDragImage(const gfx::ImageSkia& image,
-                            const gfx::Vector2dF& offset) OVERRIDE;
 
  private:
   // Grabs the pointer and keyboard, setting the mouse cursor to |cursor|.
   // Returns true if the grab was successful.
   bool GrabPointerAndKeyboard(gfx::NativeCursor cursor);
 
   // Creates an input-only window to be used during the drag.
   Window CreateDragInputWindow(XDisplay* display);
 
-  // Creates a window to show the drag image during the drag.
-  void CreateDragImageWindow();
-
-  // Checks to see if |in_image| is an image that has any visible regions
-  // (defined as having a pixel with alpha > 32). If so, return true.
-  bool CheckIfIconValid();
-
   // Dispatch mouse movement event to |delegate_| in a posted task.
   void DispatchMouseMovement();
 
   X11MoveLoopDelegate* delegate_;
 
   // Are we running a nested message loop from RunMoveLoop()?
   bool in_move_loop_;
   scoped_ptr<ui::ScopedEventDispatcher> nested_dispatcher_;
 
   bool should_reset_mouse_flags_;
 
   // An invisible InputOnly window . We create this window so we can track the
   // cursor wherever it goes on screen during a drag, since normal windows
   // don't receive pointer motion events outside of their bounds.
   ::Window grab_input_window_;
 
   base::Closure quit_closure_;
 
   // Keeps track of whether the move-loop is cancled by the user (e.g. by
   // pressing escape).
   bool canceled_;
 
   // Keeps track of whether we still have a pointer grab at the end of the loop.
   bool has_grab_;
 
-  // A Widget is created during the drag if there is an image available to be
-  // used during the drag.
-  scoped_ptr<Widget> drag_widget_;
-  gfx::ImageSkia drag_image_;
-  gfx::Vector2dF drag_offset_;
   XMotionEvent last_xmotion_;
   base::WeakPtrFactory<X11WholeScreenMoveLoop> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(X11WholeScreenMoveLoop);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_X11_WHOLE_SCREEN_MOVE_LOOP_H_