A sizes attribute parser

Source/core/css/MediaValues.h

 // Copyright 2014 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 MediaValues_h
 #define MediaValues_h
 
 #include "core/css/MediaQueryEvaluator.h"
 #include "core/css/resolver/StyleResolverState.h"
 #include "core/rendering/style/RenderStyle.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class Document;
 
 class MediaValues : public RefCounted<MediaValues> {
 public:
     enum MediaValuesMode { CachingMode,
         DynamicMode };
 
     enum PointerDeviceType { TouchPointer,
         MousePointer,
         NoPointer,
         UnknownPointer };
 
 
-    static PassRefPtr<MediaValues> create(Document*, MediaValuesMode);
+    static PassRefPtr<MediaValues> create(const Document&, MediaValuesMode);
     static PassRefPtr<MediaValues> create(LocalFrame*, RenderStyle*, MediaValuesMode);
     static PassRefPtr<MediaValues> create(MediaValuesMode,
         int viewportWidth,
         int viewportHeight,
         int deviceWidth,
         int deviceHeight,
         float devicePixelRatio,
         int colorBitsPerComponent,
         int monochromeBitsPerComponent,
         PointerDeviceType,
@@ skipping 61 matching lines @@
     int m_defaultFontSize;
     bool m_threeDEnabled;
     bool m_scanMediaType;
     bool m_screenMediaType;
     bool m_printMediaType;
     bool m_strictMode;
 };
 
 } // namespace
 #endif