Remove C::swap(C*) where C = Hash{Map,Set}<T>.

third_party/WebKit/Source/wtf/HashMap.h

 /*
  * Copyright (C) 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 63 matching lines @@
     typedef HashTableIteratorAdapter<HashTableType, ValueType> iterator;
     typedef HashTableConstIteratorAdapter<HashTableType, ValueType> const_iterator;
     typedef typename HashTableType::AddResult AddResult;
 
 public:
     void swap(HashMap& ref)
     {
         m_impl.swap(ref.m_impl);
     }
 
-    void swap(typename Allocator::template OtherType<HashMap>::Type other)
-    {
-        HashMap& ref = Allocator::getOther(other);
-        m_impl.swap(ref.m_impl);
-    }
-
     unsigned size() const;
     unsigned capacity() const;
     void reserveCapacityForSize(unsigned size)
     {
         m_impl.reserveCapacityForSize(size);
     }
 
     bool isEmpty() const;
 
     // iterators iterate over pairs of keys and values
@@ skipping 405 matching lines @@
     iterator end = collection.end().values();
     for (unsigned i = 0; it != end; ++it, ++i)
         vector[i] = *it;
 }
 
 } // namespace WTF
 
 using WTF::HashMap;
 
 #endif // WTF_HashMap_h