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

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

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 714 matching lines @@
 }
 
 template <typename Strategy>
 PositionTemplate<Strategy> LastEditablePositionBeforePositionInRootAlgorithm(
     const PositionTemplate<Strategy>& position,
     Node& highest_root) {
   DCHECK(!NeedsLayoutTreeUpdate(highest_root))
       << position << ' ' << highest_root;
   // When position falls after highestRoot, the result is easy to compute.
   if (position.CompareTo(
-          PositionTemplate<Strategy>::LastPositionInNode(&highest_root)) == 1)
-    return PositionTemplate<Strategy>::LastPositionInNode(&highest_root);
+          PositionTemplate<Strategy>::LastPositionInNode(highest_root)) == 1)
+    return PositionTemplate<Strategy>::LastPositionInNode(highest_root);
 
   PositionTemplate<Strategy> editable_position = position;
 
   if (position.AnchorNode()->GetTreeScope() != highest_root.GetTreeScope()) {
     Node* shadow_ancestor = highest_root.GetTreeScope().AncestorInThisScope(
         editable_position.AnchorNode());
     if (!shadow_ancestor)
       return PositionTemplate<Strategy>();
 
     editable_position = PositionTemplate<Strategy>::FirstPositionInOrBeforeNode(
@@ skipping 1432 matching lines @@
         return InputType::kDeleteSoftLineBackward;
       if (granularity == kParagraphBoundary)
         return InputType::kDeleteHardLineBackward;
       return InputType::kDeleteContentBackward;
     default:
       return InputType::kNone;
   }
 }
 
 }  // namespace blink