Bug 277034 - Large SVG documents don't display scrollbars. r+sr=roc.

layout/base/nsCSSFrameConstructor.cpp

@@ -3842,14 +3842,6 @@ nsCSSFrameConstructor::PropagateScrollToViewport(nsPresContext* aPresContext)
 
   nsIContent* docElement = mDocument->GetRootContent();
 
-#ifdef MOZ_SVG
-  // Per the SVG specification overflow should be ignored on an
-  // outermost stand-alone <svg> (SVG document).  Sixth bullet.
-  // http://www.w3.org/TR/SVG11/masking.html#OverflowAndClipProperties
-  if (docElement->IsContentOfType(nsIContent::eSVG))
-    return nsnull;
-#endif
-
   // Check the style on the document root element
   nsStyleSet *styleSet = aPresContext->PresShell()->StyleSet();
   nsRefPtr<nsStyleContext> rootStyle;

layout/svg/base/src/svg.css

@@ -62,7 +62,7 @@ style {
  display: none;
 }
 
-svg, symbol, image, marker, pattern, foreignObject { overflow: hidden }
+svg:not(:root), symbol, image, marker, pattern, foreignObject { overflow: hidden }
 
 symbol {
  display: none;