Enable TCMalloc doubly-linked freelist in release builds

base/allocator/allocator.gyp

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'jemalloc_dir': '../../third_party/jemalloc/chromium',
     'tcmalloc_dir': '../../third_party/tcmalloc/chromium',
   },
   'targets': [
@@ skipping 248 matching lines @@
         'VCLibrarianTool': {
           'AdditionalOptions': ['/ignore:4006,4221'],
           'AdditionalLibraryDirectories':
             ['<(DEPTH)/third_party/platformsdk_win7/files/Lib'],
         },
         'VCLinkerTool': {
           'AdditionalOptions': ['/ignore:4006'],
         },
       },
       'configurations': {
-        'Debug': {
-          'defines': 
-          ['TCMALLOC_USE_DOUBLYLINKED_FREELIST'],
-        },
         'Debug_Base': {
           'msvs_settings': {
             'VCCLCompilerTool': {
               'RuntimeLibrary': '0',
             },
           },
         },
       },
       'conditions': [
         ['OS=="win"', {
@@ skipping 153 matching lines @@
                 '$(VCInstallDir)lib',
                 '<(SHARED_INTERMEDIATE_DIR)/allocator',
               ],
             },
           ],
         },
       ],
     }],
   ],
 }