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

third_party/WebKit/Source/core/dom/RangeTest.cpp

 // Copyright 2014 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/dom/Range.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/V8BindingForTesting.h"
 #include "core/dom/Element.h"
 #include "core/dom/NodeList.h"
@@ skipping 14 matching lines @@
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
 class RangeTest : public EditingTestBase {};
 
 TEST_F(RangeTest, createAdjustedToTreeScopeWithPositionInShadowTree) {
   GetDocument().body()->setInnerHTML("<div><select><option>012</option></div>");
   Element* const select_element = GetDocument().QuerySelector("select");
   const Position& position =
-      Position::AfterNode(select_element->UserAgentShadowRoot());
+      Position::AfterNode(*select_element->UserAgentShadowRoot());
   Range* const range =
       Range::CreateAdjustedToTreeScope(GetDocument(), position);
   EXPECT_EQ(range->startContainer(), select_element->parentNode());
   EXPECT_EQ(static_cast<unsigned>(range->startOffset()),
             select_element->NodeIndex());
   EXPECT_TRUE(range->collapsed());
 }
 
 TEST_F(RangeTest, extractContentsWithDOMMutationEvent) {
   GetDocument().body()->setInnerHTML("<span><b>abc</b>def</span>");
@@ skipping 202 matching lines @@
 TEST_F(RangeTest, ToPosition) {
   Node& textarea = *HTMLTextAreaElement::Create(GetDocument());
   Range& range = *Range::Create(GetDocument());
   const Position position = Position(&textarea, 0);
   range.setStart(position, ASSERT_NO_EXCEPTION);
   EXPECT_EQ(position, range.StartPosition());
   EXPECT_EQ(position, range.EndPosition());
 }
 
 }  // namespace blink