Adds a porting layer so aura can be made to work with mus

ui/aura/window_property.h

 // 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.
 
 #ifndef UI_AURA_WINDOW_PROPERTY_H_
 #define UI_AURA_WINDOW_PROPERTY_H_
 
 #include <stdint.h>
 
 #include "ui/aura/aura_export.h"
 #include "ui/aura/window.h"
 
 // This header should be included by code that defines WindowProperties.
 //
 // To define a new WindowProperty:
 //
 //  #include "foo/foo_export.h"
 //  #include "ui/aura/window_property.h"
 //
 //  DECLARE_EXPORTED_WINDOW_PROPERTY_TYPE(FOO_EXPORT, MyType);
 //  namespace foo {
-//    // Use this to define an exported property that is premitive,
+//    // Use this to define an exported property that is primitive,
 //    // or a pointer you don't want automatically deleted.
 //    DEFINE_WINDOW_PROPERTY_KEY(MyType, kMyKey, MyDefault);
 //
 //    // Use this to define an exported property whose value is a heap
 //    // allocated object, and has to be owned and freed by the window.
 //    DEFINE_OWNED_WINDOW_PROPERTY_KEY(gfx::Rect, kRestoreBoundsKey, NULL);
 //
 //    // Use this to define a non exported property that is primitive,
 //    // or a pointer you don't want to automatically deleted, and is used
 //    // only in a specific file. This will define the property in an unnamed
@@ skipping 114 matching lines @@
   void Deallocator##NAME(int64_t p) {                                    \
     enum { type_must_be_complete = sizeof(TYPE) };                       \
     delete aura::WindowPropertyCaster<TYPE*>::FromInt64(p);              \
   }                                                                      \
   const aura::WindowProperty<TYPE*> NAME##_Value = {DEFAULT, #NAME,      \
                                                     &Deallocator##NAME}; \
   }                                                                      \
   const aura::WindowProperty<TYPE*>* const NAME = &NAME##_Value;
 
 #endif  // UI_AURA_WINDOW_PROPERTY_H_