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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ui/aura/client/screen_position_client.h"
      6 
      7 #include "ui/aura/window_property.h"
      8 
      9 DECLARE_WINDOW_PROPERTY_TYPE(aura::client::ScreenPositionClient*)
     10 
     11 namespace aura {
     12 namespace client {
     13 
     14 DEFINE_LOCAL_WINDOW_PROPERTY_KEY(ScreenPositionClient*,
     15                                  kScreenPositionClientKey,
     16                                  NULL);
     17 
     18 void SetScreenPositionClient(Window* root_window,
     19                              ScreenPositionClient* client) {
     20   DCHECK_EQ(root_window->GetRootWindow(), root_window);
     21   root_window->SetProperty(kScreenPositionClientKey, client);
     22 }
     23 
     24 ScreenPositionClient* GetScreenPositionClient(const Window* root_window) {
     25   if (root_window)
     26     DCHECK_EQ(root_window->GetRootWindow(), root_window);
     27   return root_window ?
     28       root_window->GetProperty(kScreenPositionClientKey) : NULL;
     29 }
     30 
     31 }  // namespace client
     32 }  // namespace aura
     33