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

third_party/WebKit/Source/core/editing/serializers/StyledMarkupSerializerTest.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/editing/serializers/StyledMarkupSerializer.h"
 
 #include "core/dom/Text.h"
 #include "core/editing/EditingTestBase.h"
 
 namespace blink {
@@ skipping 266 matching lines @@
 }
 
 TEST_F(StyledMarkupSerializerTest, AcrossInvisibleElements) {
   const char* body_content =
       "<span id='span1' style='display: none'>11</span><span id='span2' "
       "style='display: none'>22</span>";
   SetBodyContent(body_content);
   Element* span1 = GetDocument().getElementById("span1");
   Element* span2 = GetDocument().getElementById("span2");
   Position start_dom = Position::FirstPositionInNode(*span1);
-  Position end_dom = Position::LastPositionInNode(span2);
+  Position end_dom = Position::LastPositionInNode(*span2);
   EXPECT_EQ("", SerializePart<EditingStrategy>(start_dom, end_dom));
   PositionInFlatTree start_ict =
       PositionInFlatTree::FirstPositionInNode(*span1);
-  PositionInFlatTree end_ict = PositionInFlatTree::LastPositionInNode(span2);
+  PositionInFlatTree end_ict = PositionInFlatTree::LastPositionInNode(*span2);
   EXPECT_EQ("", SerializePart<EditingInFlatTreeStrategy>(start_ict, end_ict));
 }
 
 }  // namespace blink