Cleanup: remove Details::window. Use GetTarget() when possible

ash/wm/panels/panel_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/panels/panel_window_resizer.h"
 
 #include "ash/display/display_controller.h"
 #include "ash/screen_ash.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_types.h"
@@ skipping 118 matching lines @@
     : details_(details),
       next_window_resizer_(next_window_resizer),
       panel_container_(NULL),
       initial_panel_container_(NULL),
       did_move_or_resize_(false),
       was_attached_(wm::GetWindowState(GetTarget())->panel_attached()),
       should_attach_(was_attached_),
       weak_ptr_factory_(this) {
   DCHECK(details_.is_resizable);
   panel_container_ = Shell::GetContainer(
-      details.window->GetRootWindow(),
+      GetTarget()->GetRootWindow(),
       internal::kShellWindowId_PanelContainer);
   initial_panel_container_ = panel_container_;
 }
 
 bool PanelWindowResizer::AttachToLauncher(const gfx::Rect& bounds,
                                           gfx::Point* offset) {
   bool should_attach = false;
   if (panel_container_) {
     internal::PanelLayoutManager* panel_layout_manager =
         GetPanelLayoutManager(panel_container_);
@@ skipping 82 matching lines @@
 }
 
 void PanelWindowResizer::UpdateLauncherPosition() {
   if (panel_container_) {
     GetPanelLayoutManager(panel_container_)->shelf()->
         UpdateIconPositionForWindow(GetTarget());
   }
 }
 
 }  // namespace aura