Migrate WTF::Vector::append() to ::push_back() [part 12 of N]

third_party/WebKit/Source/core/xml/XPathNodeSet.h

Index: third_party/WebKit/Source/core/xml/XPathNodeSet.h
diff --git a/third_party/WebKit/Source/core/xml/XPathNodeSet.h b/third_party/WebKit/Source/core/xml/XPathNodeSet.h
index 6ba8ee1ac0e1f97aba9ce0ebd0e16d6c8a4b9d60..5ec9d7781a276c570fc11340abbc0a077bbe821b 100644
--- a/third_party/WebKit/Source/core/xml/XPathNodeSet.h
+++ b/third_party/WebKit/Source/core/xml/XPathNodeSet.h
@@ -60,7 +60,7 @@ class NodeSet final : public GarbageCollected<NodeSet> {
   }
 
   // NodeSet itself does not verify that nodes in it are unique.
-  void append(Node* node) { m_nodes.append(node); }
+  void append(Node* node) { m_nodes.push_back(node); }
   void append(const NodeSet& nodeSet) { m_nodes.appendVector(nodeSet.m_nodes); }
 
   // Returns the set's first node in document order, or 0 if the set is empty.