Make Position::LastPositionInNode() to take const Node& instead of Node*

third_party/WebKit/Source/core/editing/Position.cpp

Index: third_party/WebKit/Source/core/editing/Position.cpp
diff --git a/third_party/WebKit/Source/core/editing/Position.cpp b/third_party/WebKit/Source/core/editing/Position.cpp
index bb52336e1a4fce1d217022f30dda249de800dfb2..0026b598d9d044ce30d183f9856e33120dad114e 100644
--- a/third_party/WebKit/Source/core/editing/Position.cpp
+++ b/third_party/WebKit/Source/core/editing/Position.cpp
@@ -500,12 +500,12 @@ PositionTemplate<Strategy> PositionTemplate<Strategy>::FirstPositionInNode(
 // static
 template <typename Strategy>
 PositionTemplate<Strategy> PositionTemplate<Strategy>::LastPositionInNode(
-    Node* anchor_node) {
-  if (anchor_node->IsTextNode()) {
+    const Node& anchor_node) {
+  if (anchor_node.IsTextNode()) {
     return PositionTemplate<Strategy>(anchor_node,
-                                      LastOffsetInNode(*anchor_node));
+                                      LastOffsetInNode(anchor_node));
   }
-  return PositionTemplate<Strategy>(anchor_node,
+  return PositionTemplate<Strategy>(&anchor_node,
                                     PositionAnchorType::kAfterChildren);
 }
 
@@ -526,7 +526,7 @@ PositionTemplate<Strategy>::LastPositionInOrAfterNode(Node* node) {
   if (!node)
     return PositionTemplate<Strategy>();
   return EditingIgnoresContent(*node) ? AfterNode(*node)
-                                      : LastPositionInNode(node);
+                                      : LastPositionInNode(*node);
 }
 
 PositionInFlatTree ToPositionInFlatTree(const Position& pos) {