Make HashMap a template class to specify the allocation policy.

tools/gyp/v8.gyp

 # Copyright 2012 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 307 matching lines @@
             '../../src/full-codegen.cc',
             '../../src/full-codegen.h',
             '../../src/func-name-inferrer.cc',
             '../../src/func-name-inferrer.h',
             '../../src/global-handles.cc',
             '../../src/global-handles.h',
             '../../src/globals.h',
             '../../src/handles-inl.h',
             '../../src/handles.cc',
             '../../src/handles.h',
-            '../../src/hashmap.cc',
             '../../src/hashmap.h',
             '../../src/heap-inl.h',
             '../../src/heap.cc',
             '../../src/heap.h',
             '../../src/heap-profiler.cc',
             '../../src/heap-profiler.h',
             '../../src/hydrogen.cc',
             '../../src/hydrogen.h',
             '../../src/hydrogen-instructions.cc',
             '../../src/hydrogen-instructions.h',
@@ skipping 577 matching lines @@
             '../../src/diy-fp.cc',
             '../../src/diy-fp.h',
             '../../src/double.h',
             '../../src/dtoa.cc',
             '../../src/dtoa.h',
             '../../src/fast-dtoa.cc',
             '../../src/fast-dtoa.h',
             '../../src/fixed-dtoa.cc',
             '../../src/fixed-dtoa.h',
             '../../src/globals.h',
-            '../../src/hashmap.cc',
             '../../src/hashmap.h',
             '../../src/list-inl.h',
             '../../src/list.h',
             '../../src/preparse-data-format.h',
             '../../src/preparse-data.cc',
             '../../src/preparse-data.h',
             '../../src/preparser.cc',
             '../../src/preparser.h',
             '../../src/preparser-api.cc',
             '../../src/scanner.cc',
@@ skipping 47 matching lines @@
             }],
           ],
           'dependencies': [
             'v8'
           ],
         },
       ],
     }],
   ],
 }