Make SVG images for custom CSS cursors appear sharp on retina displays

Source/core/css/CSSCursorImageValue.cpp

Index: Source/core/css/CSSCursorImageValue.cpp
===================================================================
--- Source/core/css/CSSCursorImageValue.cpp	(revision 162906)
+++ Source/core/css/CSSCursorImageValue.cpp	(working copy)
@@ -144,8 +144,13 @@
             m_image = toCSSImageValue(m_imageValue.get())->cachedImage(loader);
     }
 
-    if (m_image && m_image->isImageResource())
-        return toStyleFetchedImage(m_image);
+    if (m_image && m_image->isImageResource()) {
+        StyleFetchedImage* fetched = toStyleFetchedImage(m_image);
+        ImageResource* resource = fetched->cachedImage();
+        if (resource)
+            resource->setDeviceScaleFactor(deviceScaleFactor);
+        return fetched;
+    }
     return 0;
 }