Remove -webkit-aspect-ratio.

Source/core/css/StylePropertySet.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Research In Motion Limited. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 374 matching lines @@
             return true;
     }
     return false;
 }
 
 // This is the list of properties we want to copy in the copyBlockProperties() function.
 // It is the list of CSS properties that apply specially to block-level elements.
 static const CSSPropertyID staticBlockProperties[] = {
     CSSPropertyOrphans,
     CSSPropertyOverflow, // This can be also be applied to replaced elements
-    CSSPropertyWebkitAspectRatio,
     CSSPropertyWebkitColumnCount,
     CSSPropertyWebkitColumnGap,
     CSSPropertyWebkitColumnRuleColor,
     CSSPropertyWebkitColumnRuleStyle,
     CSSPropertyWebkitColumnRuleWidth,
     CSSPropertyWebkitColumnBreakBefore,
     CSSPropertyWebkitColumnBreakAfter,
     CSSPropertyWebkitColumnBreakInside,
     CSSPropertyWebkitColumnWidth,
     CSSPropertyPageBreakAfter,
@@ skipping 199 matching lines @@
     result.appendLiteral(": ");
     result.append(propertyValue()->cssText());
     if (isImportant())
         result.appendLiteral(" !important");
     result.append(';');
     return result.toString();
 }
 
 
 } // namespace blink