Index: third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp |
diff --git a/third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp b/third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp |
index 9d5161debbaf8df35c0d66b5dc6aa74dc906b3ad..3d4a1f063ff4ab345012cf9826536c09e533cf97 100644 |
--- a/third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp |
+++ b/third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp |
@@ -495,7 +495,7 @@ static void projectRectsToGraphicsLayerSpaceRecursive( |
for (size_t i = 0; i < layerIter->value.size(); ++i) { |
LayoutRect rect = layerIter->value[i]; |
if (compositedLayer != curLayer) { |
- FloatQuad compositorQuad = geometryMap.mapToContainer(FloatRect(rect), compositedLayer->layoutObject()); |
+ FloatQuad compositorQuad = geometryMap.mapToAncestor(FloatRect(rect), compositedLayer->layoutObject()); |
rect = LayoutRect(compositorQuad.boundingBox()); |
// If the enclosing composited layer itself is scrolled, we have to undo the subtraction |
// of its scroll offset since we want the offset relative to the scrolling content, not |