Merge the LINUX_TC_MALLOC #define with the existing TC_MALLOC #define....

base/base.gypi

 # Copyright (c) 2010 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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
     },
     'target_conditions': [
@@ skipping 348 matching lines @@
         ],
       },
       # Conditions that are not relevant for Win64 build
       'conditions': [
         [ 'OS == "linux" or OS == "freebsd"', {
           'conditions': [
             [ 'chromeos==1', {
                 'sources/': [ ['include', '_chromeos\\.cc$'] ]
               },
             ],
-            [ 'linux_use_tcmalloc==1', {
+            [ 'linux_use_tcmalloc==0', {
                 'defines': [
-                  'LINUX_USE_TCMALLOC',
+                  'NO_TCMALLOC',
                 ],
                 'direct_dependent_settings': {
                   'defines': [
-                    'LINUX_USE_TCMALLOC',
+                    'NO_TCMALLOC',
                   ],
                 },
               },
             ],
             [ 'OS == "linux"', {
               'link_settings': {
                 'libraries': [
                   # We need rt for clock_gettime().
                   '-lrt',
                   # For 'native_library_linux.cc'
@@ skipping 238 matching lines @@
             'third_party/xdg_mime/xdgmimemagic.c',
             'third_party/xdg_mime/xdgmimemagic.h',
             'third_party/xdg_mime/xdgmimeparent.c',
             'third_party/xdg_mime/xdgmimeparent.h',
           ],
         },
       ],
     }],
   ],
 }