Add rasterviewport to include headers

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@12068 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: mhugent

src/core/CMakeLists.txt

@@ -363,6 +363,7 @@ raster/qgsrasterlayer.h
 raster/qgsrastertransparency.h
 raster/qgsrastershader.h
 raster/qgsrastershaderfunction.h
+raster/qgsrasterviewport.h
 
 renderer/qgscontinuouscolorrenderer.h
 renderer/qgsgraduatedsymbolrenderer.h