Refactor and push window properties up to class properties.

ui/aura/window_port_local.cc

 // Copyright 2016 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 "ui/aura/window_port_local.h"
 
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_delegate.h"
@@ skipping 61 matching lines @@
 void WindowPortLocal::OnWillRemoveChild(Window* child) {}
 
 void WindowPortLocal::OnWillMoveChild(size_t current_index, size_t dest_index) {
 }
 
 void WindowPortLocal::OnVisibilityChanged(bool visible) {}
 
 void WindowPortLocal::OnDidChangeBounds(const gfx::Rect& old_bounds,
                                         const gfx::Rect& new_bounds) {}
 
-std::unique_ptr<WindowPortPropertyData> WindowPortLocal::OnWillChangeProperty(
+std::unique_ptr<ui::PropertyData> WindowPortLocal::OnWillChangeProperty(
     const void* key) {
   return nullptr;
 }
 
 void WindowPortLocal::OnPropertyChanged(
     const void* key,
-    std::unique_ptr<WindowPortPropertyData> data) {}
+    std::unique_ptr<ui::PropertyData> data) {}
 
 }  // namespace aura