Move hoverAncestor() override to LayoutBlockFlow.

third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp

Index: third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp b/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
index 88c43f48f85fbb14c72f6dabe2e01682b9829ea4..8f7e58108ba34b68e02be2c63514d72d722e8e4b 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
@@ -1970,6 +1970,11 @@ void LayoutBlockFlow::absoluteQuads(Vector<FloatQuad>& quads) const
     continuation()->absoluteQuads(quads);
 }
 
+LayoutObject* LayoutBlockFlow::hoverAncestor() const
+{
+    return isAnonymousBlockContinuation() ? continuation() : LayoutBlock::hoverAncestor();
+}
+
 RootInlineBox* LayoutBlockFlow::createAndAppendRootInlineBox()
 {
     RootInlineBox* rootBox = createRootInlineBox();