Dispel the myth that enclosingLayer can return zero

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index 9bbc57e15937f157cf554080c4cbd57548f8581a..4c9a44c4b9db8e95fd64674480a72f3539cc8ad2 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -1183,7 +1183,7 @@ void WebViewImpl::enableTapHighlights(Vector<Node*>& highlightNodes)
     for (size_t i = 0; i < highlightNodes.size(); ++i) {
         Node* node = highlightNodes[i];
 
-        if (!node || !node->renderer() || !node->renderer()->enclosingLayer())
+        if (!node || !node->renderer())
             continue;
 
         Color highlightColor = node->renderer()->style()->tapHighlightColor();