[base] Remove PointersMatch, making a separate std::equals hashmap

src/ast/ast-value-factory.h

 // Copyright 2014 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 385 matching lines @@
     strings_end_ = &strings_;
   }
   AstRawString* GetOneByteStringInternal(Vector<const uint8_t> literal);
   AstRawString* GetTwoByteStringInternal(Vector<const uint16_t> literal);
   AstRawString* GetString(uint32_t hash, bool is_one_byte,
                           Vector<const byte> literal_bytes);
 
   static bool AstRawStringCompare(void* a, void* b);
 
   // All strings are copied here, one after another (no NULLs inbetween).
-  base::HashMap string_table_;
+  base::CustomMatcherHashMap string_table_;
   // For keeping track of all AstValues and AstRawStrings we've created (so that
   // they can be internalized later).
   AstValue* values_;
   // We need to keep track of strings_ in order, since cons strings require
   // their members to be internalized first.
   AstString* strings_;
   AstString** strings_end_;
   Zone* zone_;
 
   uint32_t hash_seed_;
 
 #define F(name, str) const AstRawString* name##_string_;
   STRING_CONSTANTS(F)
 #undef F
 
 #define F(name) AstValue* name##_;
   OTHER_CONSTANTS(F)
 #undef F
 };
 }  // namespace internal
 }  // namespace v8
 
 #undef STRING_CONSTANTS
 #undef OTHER_CONSTANTS
 
 #endif  // V8_AST_AST_VALUE_FACTORY_H_