createFragmentFromMarkupWithContext() should use EphemeralRange.

third_party/WebKit/Source/core/editing/EphemeralRange.h

 // Copyright 2015 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.
 
 #ifndef EphemeralRange_h
 #define EphemeralRange_h
 
 #include "core/editing/Position.h"
 
 namespace blink {
@@ skipping 87 matching lines @@
   EphemeralRangeTemplate<Strategy>& operator=(
       const EphemeralRangeTemplate<Strategy>& other);
 
   bool operator==(const EphemeralRangeTemplate<Strategy>& other) const;
   bool operator!=(const EphemeralRangeTemplate<Strategy>& other) const;
 
   Document& document() const;
   PositionTemplate<Strategy> startPosition() const;
   PositionTemplate<Strategy> endPosition() const;
 
+  Node* commonAncestorContainer() const;
+
   // Returns true if |m_startPositoin| == |m_endPosition| or |isNull()|.
   bool isCollapsed() const;
   bool isNull() const {
     DCHECK(isValid());
     return m_startPosition.isNull();
   }
   bool isNotNull() const { return !isNull(); }
 
   RangeTraversal nodes() const;
 
@@ skipping 21 matching lines @@
 using EphemeralRangeInFlatTree =
     EphemeralRangeTemplate<EditingInFlatTreeStrategy>;
 
 // Returns a newly created |Range| object from |range| or |nullptr| if
 // |range.isNull()| returns true.
 CORE_EXPORT Range* createRange(const EphemeralRange& /* range */);
 
 }  // namespace blink
 
 #endif