Allow the user to drag a window from one display to another

ash/wm/default_window_resizer.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/default_window_resizer.h"
 
 #include "ash/shell.h"
 #include "ash/wm/cursor_manager.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/screen_position_client.h"
@@ skipping 29 matching lines @@
   if (current_root != details_.window->GetRootWindow())
     return;
 
   gfx::Point location_in_root = location_in_screen;
   aura::client::GetScreenPositionClient(current_root)->
       ConvertPointFromScreen(current_root, &location_in_root);
 
   int grid_size = event_flags & ui::EF_CONTROL_DOWN ?
                   0 : ash::Shell::GetInstance()->GetGridSize();
   gfx::Rect bounds(
-      CalculateBoundsForDrag(details_, location_in_root, grid_size));
+      CalculateBoundsForDrag(details_, location_in_screen, grid_size));
   if (bounds != details_.window->bounds()) {
     did_move_or_resize_ = true;
     details_.window->SetBounds(bounds);
   }
 }
 
 void DefaultWindowResizer::CompleteDrag(int event_flags) {
   int grid_size = event_flags & ui::EF_CONTROL_DOWN ?
                   0 : ash::Shell::GetInstance()->GetGridSize();
   if (grid_size <= 1 || !did_move_or_resize_)
@@ skipping 24 matching lines @@
 }
 
 DefaultWindowResizer::DefaultWindowResizer(const Details& details)
     : details_(details),
       did_move_or_resize_(false) {
   DCHECK(details_.is_resizable);
   ash::Shell::GetInstance()->cursor_manager()->LockCursor();
 }
 
 }  // namespace aura