Fix propagation of clip-path and border-radius clipping to child layers

Source/core/rendering/RenderLayer.h

Index: Source/core/rendering/RenderLayer.h
diff --git a/Source/core/rendering/RenderLayer.h b/Source/core/rendering/RenderLayer.h
index 6b34194d4389a43b74fe4c89b96b120af8f785d8..9e602c91deb9ef2f9d1629154120411d0ad655c5 100644
--- a/Source/core/rendering/RenderLayer.h
+++ b/Source/core/rendering/RenderLayer.h
@@ -62,6 +62,8 @@
 
 namespace WebCore {
 
+struct ClipperContext;
+class CompositedLayerMapping;
 class FilterEffectRenderer;
 class FilterOperations;
 class HitTestRequest;
@@ -70,11 +72,11 @@ class HitTestingTransformState;
 class PlatformEvent;
 class RenderFlowThread;
 class RenderGeometryMap;
-class CompositedLayerMapping;
 class RenderLayerCompositor;
 class RenderReplica;
 class RenderScrollbarPart;
 class RenderStyle;
+class RenderSVGResourceClipper;
 class RenderView;
 class Scrollbar;
 class TransformationMatrix;
@@ -207,6 +209,9 @@ public:
     void setHasOutOfFlowPositionedDescendant(bool hasDescendant) { m_hasOutOfFlowPositionedDescendant = hasDescendant; }
     void setHasOutOfFlowPositionedDescendantDirty(bool dirty) { m_hasOutOfFlowPositionedDescendantDirty = dirty; }
 
+    void setHasComplexClippedAncestor(bool hasAncestor) { m_hasComplexClippedAncestor = hasAncestor; }
+    bool hasComplexClippedAncestor() const { return m_hasComplexClippedAncestor; }
+
     bool childLayerHasBlendMode() const { ASSERT(!m_childLayerHasBlendModeStatusDirty); return m_childLayerHasBlendMode; }
 
     bool hasUnclippedDescendant() const { return m_hasUnclippedDescendant; }
@@ -466,6 +471,7 @@ private:
 
     void updateSelfPaintingLayer();
     void updateVisibilityAfterStyleChange(const RenderStyle* oldStyle);
+    void updateHasComplexClippedAncestor();
 
     void updateOutOfFlowPositioned(const RenderStyle* oldStyle);
 
@@ -516,6 +522,7 @@ private:
     void paintMaskForFragments(const LayerFragments&, GraphicsContext*, const LayerPaintingInfo&, RenderObject* paintingRootForRenderer);
     void paintChildClippingMaskForFragments(const LayerFragments&, GraphicsContext*, const LayerPaintingInfo&, RenderObject* paintingRootForRenderer);
     void paintTransformedLayerIntoFragments(GraphicsContext*, const LayerPaintingInfo&, PaintLayerFlags);
+    void applyComplexClip(GraphicsContext*, RenderLayer*, ClipperContext*, const LayerPaintingInfo&, const LayoutPoint& offsetFromRoot, bool* needsContextRestore, bool* rootRelativeBoundsComputed, IntRect* rootRelativeBounds, Vector<RenderSVGResourceClipper*>*);
 
     RenderLayer* hitTestLayer(RenderLayer* rootLayer, RenderLayer* containerLayer, const HitTestRequest& request, HitTestResult& result,
                               const LayoutRect& hitTestRect, const HitTestLocation&, bool appliedTransform,
@@ -628,6 +635,8 @@ protected:
 
     unsigned m_isUnclippedDescendant : 1;
 
+    unsigned m_hasComplexClippedAncestor : 1;
+
     const unsigned m_isRootLayer : 1;
 
     unsigned m_usedTransparency : 1; // Tracks whether we need to close a transparent layer, i.e., whether