Add dlmalloc from Bionic to the Chromium tree (DO NOT REVIEW).

base/base.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/win_precompile.gypi',
@@ skipping 121 matching lines @@
             ['target_arch == "ia32"', {
               'sources/': [
                 ['include', '^atomicops_internals_x86_gcc\\.cc$'],
               ],
             }],
             ['target_arch == "mipsel"', {
               'sources/': [
                 ['include', '^atomicops_internals_mips_gcc\\.cc$'],
               ],
             }],
+            ['android_use_debug_dlmalloc == 1', {
+              'dependencies': [
+                '../third_party/android_debug_dlmalloc/dlmalloc.gyp:dlmalloc',
+              ],
+            }],
           ],
           'dependencies': [
             'base_jni_headers',
             'symbolize',
             '../third_party/ashmem/ashmem.gyp:ashmem',
           ],
           'include_dirs': [
             '<(SHARED_INTERMEDIATE_DIR)/base',
           ],
           'link_settings': {
@@ skipping 1137 matching lines @@
             'base_unittests.isolate',
           ],
           'sources': [
             'base_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }