webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 18 insertions, 0 deletions

diff --git a/Source/WebCore/page/scrolling/ScrollingConstraints.cpp b/Source/WebCore/page/scrolling/ScrollingConstraints.cpp
index 4b3f4d68c..00f101a34 100644
--- a/Source/WebCore/page/scrolling/ScrollingConstraints.cpp
+++ b/Source/WebCore/page/scrolling/ScrollingConstraints.cpp
@@ -26,6 +26,8 @@
 #include "config.h"
 #include "ScrollingConstraints.h"
 
+#include "TextStream.h"
+
 namespace WebCore {
 
 FloatPoint FixedPositionViewportConstraints::layerPositionForViewportRect(const FloatRect& viewportRect) const
@@ -98,4 +100,20 @@ FloatPoint StickyPositionViewportConstraints::layerPositionForConstrainingRect(c
     return m_layerPositionAtLastLayout + offset - m_stickyOffsetAtLastLayout;
 }
 
+TextStream& operator<<(TextStream& ts, const FixedPositionViewportConstraints& constraints)
+{
+    ts.dumpProperty("viewport-rect-at-last-layout", constraints.viewportRectAtLastLayout());
+    ts.dumpProperty("layer-position-at-last-layout", constraints.layerPositionAtLastLayout());
+
+    return ts;
+}
+
+TextStream& operator<<(TextStream& ts, const StickyPositionViewportConstraints& constraints)
+{
+    ts.dumpProperty("sticky-position-at-last-layout", constraints.stickyOffsetAtLastLayout());
+    ts.dumpProperty("layer-position-at-last-layout", constraints.layerPositionAtLastLayout());
+
+    return ts;
+}
+
 } // namespace WebCore