Index: third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp |
diff --git a/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp b/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp |
index d41aef293f0b95ce9767c1ba7c63729d3dc381f2..8afe09c5ceb2f5c4d80bdcf68de62757304f801a 100644 |
--- a/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp |
+++ b/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp |
@@ -2256,6 +2256,9 @@ IntRect CompositedLayerMapping::recomputeInterestRect(const GraphicsLayer* graph |
// Start with the bounds of the graphics layer in the space of the anchor LayoutObject. |
FloatRect graphicsLayerBoundsInObjectSpace(graphicsLayerBounds); |
graphicsLayerBoundsInObjectSpace.move(offsetFromAnchorLayoutObject); |
+ // The object space means including writing mode flip. |
+ if (anchorLayoutObject->isBox()) |
+ toLayoutBox(anchorLayoutObject)->flipForWritingMode(graphicsLayerBoundsInObjectSpace); |
// Now map the bounds to its visible content rect in screen space, including applying clips along the way. |
LayoutRect visibleContentRect(graphicsLayerBoundsInObjectSpace); |