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Unified Diff: third_party/WebKit/Source/core/paint/PaintLayer.cpp

Issue 2068723002: Paint local attachment backgrounds into composited scrolling contents layer (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Improve opaque layer detection and fix non-composited border painting bug in layout tests. Created 4 years, 5 months ago
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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 8c653ecaa707c59f8611cfb8455116e5da659abf..e28420a8a41eb37997bd9bc4c4a7ce3be448a9a8 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayer.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintLayer.cpp
@@ -2452,6 +2452,13 @@ bool PaintLayer::shouldBeSelfPaintingLayer() const
|| needsCompositedScrolling();
}
+bool PaintLayer::shouldPaintBackgroundOntoForeground() const
+{
+ return scrollsOverflow()
+ && layoutObject()->style()->hasEntirelyLocalBackground()
+ && !stackingNode()->hasNegativeZOrderList();
+}
+
void PaintLayer::updateSelfPaintingLayer()
{
bool isSelfPaintingLayer = shouldBeSelfPaintingLayer();

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