[Experimental] Supporting OOPIF printing

third_party/WebKit/Source/core/paint/FramePainter.cpp

Index: third_party/WebKit/Source/core/paint/FramePainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/FramePainter.cpp b/third_party/WebKit/Source/core/paint/FramePainter.cpp
index 20dc935cca7e839d66904f78c61840724ab75510..99343de751b3f470d80d413ad0601cf885587a70 100644
--- a/third_party/WebKit/Source/core/paint/FramePainter.cpp
+++ b/third_party/WebKit/Source/core/paint/FramePainter.cpp
@@ -116,7 +116,6 @@ void FramePainter::paint(GraphicsContext& context,
     ClipRecorder recorder(
         context, *frameView().layoutView(), DisplayItem::kClipFrameScrollbars,
         IntRect(IntPoint(), visibleAreaWithScrollbars.size()));
-
     paintScrollbars(context, scrollViewDirtyRect);
   }
 }
@@ -198,10 +197,12 @@ void FramePainter::paintContents(GraphicsContext& context,
 void FramePainter::paintScrollbars(GraphicsContext& context,
                                    const IntRect& rect) {
   if (frameView().horizontalScrollbar() &&
-      !frameView().layerForHorizontalScrollbar())
+      (frameView().frame().document()->printing() ||
+       !frameView().layerForHorizontalScrollbar()))
     paintScrollbar(context, *frameView().horizontalScrollbar(), rect);
   if (frameView().verticalScrollbar() &&
-      !frameView().layerForVerticalScrollbar())
+      (frameView().frame().document()->printing() ||
+       !frameView().layerForVerticalScrollbar()))
     paintScrollbar(context, *frameView().verticalScrollbar(), rect);
 
   if (frameView().layerForScrollCorner())