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

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

Index: third_party/WebKit/Source/core/dom/RangeTest.cpp
diff --git a/third_party/WebKit/Source/core/dom/RangeTest.cpp b/third_party/WebKit/Source/core/dom/RangeTest.cpp
index 7f789ab4c92e41e81593cdb324db560fa941b417..09092bc025b939737c324b35b760a3e89efd90d4 100644
--- a/third_party/WebKit/Source/core/dom/RangeTest.cpp
+++ b/third_party/WebKit/Source/core/dom/RangeTest.cpp
@@ -32,7 +32,7 @@ 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());