New parser mode for CSSOM @viewport descriptors.

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 62 matching lines @@
     m_propertyVector.reserveInitialCapacity(length);
     for (unsigned i = 0; i < length; ++i)
         m_propertyVector.uncheckedAppend(properties[i]);
 }
 
 ImmutableStylePropertySet::ImmutableStylePropertySet(const CSSProperty* properties, unsigned length, CSSParserMode cssParserMode)
     : StylePropertySet(cssParserMode, length)
 {
     StylePropertyMetadata* metadataArray = const_cast<StylePropertyMetadata*>(this->metadataArray());
     CSSValue** valueArray = const_cast<CSSValue**>(this->valueArray());
-    for (unsigned i = 0; i < length; ++i) {
+    for (unsigned i = 0; i < m_arraySize; ++i) {
         metadataArray[i] = properties[i].metadata();
         valueArray[i] = properties[i].value();
         valueArray[i]->ref();
     }
 }
 
 ImmutableStylePropertySet::~ImmutableStylePropertySet()
 {
     CSSValue** valueArray = const_cast<CSSValue**>(this->valueArray());
     for (unsigned i = 0; i < m_arraySize; ++i)
@@ skipping 557 matching lines @@
     result.appendLiteral(": ");
     result.append(propertyValue()->cssText());
     if (isImportant())
         result.appendLiteral(" !important");
     result.append(';');
     return result.toString();
 }
 
 
 } // namespace WebCore