Rename base/hash_tables to base/containers/hash_tables.

cc/base/hash_pair.h

 // Copyright (c) 2012 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.
 //
 // Defines methods for hashing a pair of integers.
 
 #ifndef CC_BASE_HASH_PAIR_H_
 #define CC_BASE_HASH_PAIR_H_
 
 #include <utility>
 
 #include "base/basictypes.h"
-#include "base/hash_tables.h"
+#include "base/containers/hash_tables.h"
 
 #if defined(COMPILER_MSVC)
 
 #define DEFINE_PAIR_HASH_FUNCTION_START(type1, type2) \
     template<> \
     inline std::size_t hash_value<std::pair<type1, type2> >( \
         const std::pair<type1, type2>& value)
 
 #define DEFINE_PAIR_HASH_FUNCTION_END()
 
@@ skipping 120 matching lines @@
 DEFINE_64BIT_PAIR_HASH(uint64, int64);
 DEFINE_64BIT_PAIR_HASH(uint64, uint64);
 
 #undef DEFINE_64BIT_PAIR_HASH
 }
 
 #undef DEFINE_PAIR_HASH_FUNCTION_START
 #undef DEFINE_PAIR_HASH_FUNCTION_END
 
 #endif  // CC_BASE_HASH_PAIR_H_