Index: third_party/WebKit/Source/core/paint/PaintLayer.cpp |
diff --git a/third_party/WebKit/Source/core/paint/PaintLayer.cpp b/third_party/WebKit/Source/core/paint/PaintLayer.cpp |
index da5c63fe309570da68daae860020acb42a61f502..afe7b98de06f1f8ccd22b661e37e2e8d193f3b3f 100644 |
--- a/third_party/WebKit/Source/core/paint/PaintLayer.cpp |
+++ b/third_party/WebKit/Source/core/paint/PaintLayer.cpp |
@@ -2466,6 +2466,13 @@ bool PaintLayer::shouldBeSelfPaintingLayer() const |
|| needsCompositedScrolling(); |
} |
+bool PaintLayer::shouldPaintBackgroundOntoForeground() const |
+{ |
+ return scrollsOverflow() |
+ && layoutObject()->style()->hasEntirelyLocalBackground() |
+ && !stackingNode()->hasNegativeZOrderList(); |
+} |
+ |
void PaintLayer::updateSelfPaintingLayer() |
{ |
bool isSelfPaintingLayer = shouldBeSelfPaintingLayer(); |