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

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

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 379 matching lines @@
                                     const WebString& search_text,
                                     const WebFindOptions& options) {
   if (!ShouldScopeMatches(search_text, options)) {
     FinishCurrentScopingEffort(identifier);
     return;
   }
 
   PositionInFlatTree search_start = PositionInFlatTree::FirstPositionInNode(
       *OwnerFrame().GetFrame()->GetDocument());
   PositionInFlatTree search_end = PositionInFlatTree::LastPositionInNode(
-      OwnerFrame().GetFrame()->GetDocument());
+      *OwnerFrame().GetFrame()->GetDocument());
   DCHECK_EQ(search_start.GetDocument(), search_end.GetDocument());
 
   if (resume_scoping_from_range_) {
     // This is a continuation of a scoping operation that timed out and didn't
     // complete last time around, so we should start from where we left off.
     DCHECK(resume_scoping_from_range_->collapsed());
     search_start = FromPositionInDOMTree<EditingInFlatTreeStrategy>(
         resume_scoping_from_range_->EndPosition());
     if (search_start.GetDocument() != search_end.GetDocument())
       return;
@@ skipping 461 matching lines @@
 
 DEFINE_TRACE(TextFinder) {
   visitor->Trace(owner_frame_);
   visitor->Trace(active_match_);
   visitor->Trace(resume_scoping_from_range_);
   visitor->Trace(deferred_scoping_work_);
   visitor->Trace(find_matches_cache_);
 }
 
 }  // namespace blink