[CSSMQ] Implemented support for the scan media feature.

Source/core/css/MediaFeatureNames.h

 /*
  * Copyright (C) 2005, 2013 Apple Inc. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 42 matching lines @@
     macro(min_device_aspect_ratio, "min-device-aspect-ratio") \
     macro(min_device_pixel_ratio, "-webkit-min-device-pixel-ratio") \
     macro(min_device_height, "min-device-height") \
     macro(min_device_width, "min-device-width") \
     macro(min_height, "min-height") \
     macro(min_monochrome, "min-monochrome") \
     macro(min_width, "min-width") \
     macro(min_resolution, "min-resolution") \
     macro(pointer, "pointer") \
     macro(resolution, "resolution") \
+    macro(scan, "scan") \
     macro(transform_2d, "-webkit-transform-2d") \
     macro(transform_3d, "-webkit-transform-3d") \
     macro(transition, "-webkit-transition") \
     macro(animation, "-webkit-animation") \
     macro(view_mode, "-webkit-view-mode")
 
 // end of macro
 
 #ifndef CSS_MEDIAQUERY_NAMES_HIDE_GLOBALS
     #define CSS_MEDIAQUERY_NAMES_DECLARE(name, str) extern const AtomicString name##MediaFeature;
     CSS_MEDIAQUERY_NAMES_FOR_EACH_MEDIAFEATURE(CSS_MEDIAQUERY_NAMES_DECLARE)
     #undef CSS_MEDIAQUERY_NAMES_DECLARE
 #endif
 
         void init();
 
     } // namespace MediaFeatureNames
 } // namespace WebCore
 
 #endif // MediaFeatureNames_h