Reduce usage of VisibleSelection::setBase() and setExtent()

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

 /*
  * Copyright (C) 2004, 2005, 2006 Apple Computer, 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 110 matching lines @@
   m_affinity = other.m_affinity;
   m_selectionType = other.m_selectionType;
   m_baseIsFirst = other.m_baseIsFirst;
   m_isDirectional = other.m_isDirectional;
   m_granularity = other.m_granularity;
   m_hasTrailingWhitespace = other.m_hasTrailingWhitespace;
   return *this;
 }
 
 template <typename Strategy>
+SelectionTemplate<Strategy> VisibleSelectionTemplate<Strategy>::asSelection()
+    const {
+  typename SelectionTemplate<Strategy>::Builder builder;
+  if (m_base.isNotNull())
+    builder.setBaseAndExtent(m_base, m_extent);
+  return builder.setAffinity(m_affinity)
+      .setGranularity(m_granularity)
+      .setIsDirectional(m_isDirectional)
+      .setHasTrailingWhitespace(m_hasTrailingWhitespace)
+      .build();
+}
+
+template <typename Strategy>
 void VisibleSelectionTemplate<Strategy>::setBase(
     const PositionTemplate<Strategy>& position) {
   DCHECK(!needsLayoutTreeUpdate(position));
   m_base = position;
   validate();
 }
 
 template <typename Strategy>
 void VisibleSelectionTemplate<Strategy>::setBase(
     const VisiblePositionTemplate<Strategy>& visiblePosition) {
@@ skipping 693 matching lines @@
 
 void showTree(const blink::VisibleSelectionInFlatTree& sel) {
   sel.showTreeForThis();
 }
 
 void showTree(const blink::VisibleSelectionInFlatTree* sel) {
   if (sel)
     sel->showTreeForThis();
 }
 #endif