Adds WmWindow and converts WindowState to use it

chrome/browser/ui/views/tabs/tab_drag_controller.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 "chrome/browser/ui/views/tabs/tab_drag_controller.h"
 
 #include <math.h>
 #include <set>
 
 #include "base/auto_reset.h"
@@ skipping 27 matching lines @@
 #include "ui/views/event_monitor.h"
 #include "ui/views/focus/view_storage.h"
 #include "ui/views/widget/root_view.h"
 #include "ui/views/widget/widget.h"
 
 #if defined(USE_ASH)
 #include "ash/accelerators/accelerator_commands.h"
 #include "ash/shell.h"
 #include "ash/wm/maximize_mode/maximize_mode_controller.h"
 #include "ash/wm/window_state.h"
+#include "ash/wm/window_state_aura.h"
 #include "ui/wm/core/coordinate_conversion.h"
 #endif
 
 #if defined(USE_AURA)
 #include "ui/aura/env.h"
 #include "ui/aura/window.h"
 #include "ui/wm/core/window_modality_controller.h"
 #endif
 
 using base::UserMetricsAction;
@@ skipping 1765 matching lines @@
   // TODO(pkotwicz): Fix this properly (crbug.com/358482)
   for (auto* browser : *BrowserList::GetInstance()) {
     if (browser->tab_strip_model()->empty())
       exclude.insert(browser->window()->GetNativeWindow());
   }
 #endif
   base::WeakPtr<TabDragController> ref(weak_factory_.GetWeakPtr());
   *window = window_finder_->GetLocalProcessWindowAtPoint(screen_point, exclude);
   return ref ? Liveness::ALIVE : Liveness::DELETED;
 }