Add support for media attribute on link

third_party/WebKit/Source/core/css/MediaValuesCached.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 MediaValuesCached_h
 #define MediaValuesCached_h
 
 #include "core/CoreExport.h"
 #include "core/css/MediaValues.h"
 
@@ skipping 82 matching lines @@
     int availablePointerTypes() const override;
     HoverType primaryHoverType() const override;
     int availableHoverTypes() const override;
     bool threeDEnabled() const override;
     bool strictMode() const override;
     Document* document() const override;
     bool hasValues() const override;
     const String mediaType() const override;
     WebDisplayMode displayMode() const override;
 
-    void setViewportWidth(double);
-    void setViewportHeight(double);
+    void overrideViewportDimensions(double width, double height) override;
 
 protected:
     MediaValuesCached();
     MediaValuesCached(LocalFrame*);
     MediaValuesCached(const MediaValuesCachedData&);
 
     MediaValuesCachedData m_data;
 };
 
 template <>
 struct CrossThreadCopier<MediaValuesCached::MediaValuesCachedData> {
     typedef MediaValuesCached::MediaValuesCachedData Type;
     static Type copy(const MediaValuesCached::MediaValuesCachedData& data) { return data.deepCopy(); }
 };
 
 } // namespace blink
 
 #endif // MediaValuesCached_h