Hook up allocator shim on mac.

base/BUILD.gn

 # Copyright (c) 2013 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.
 
 # HOW TO WRITE CONDITIONALS IN THIS FILE
 # ======================================
 #
 # In many other places, one would write a conditional that expresses all the
 # cases when a source file is used or unused, and then either add or subtract
 # it from the sources list in that case
@@ skipping 1126 matching lines @@
       ]
       deps += [ "//base/allocator:tcmalloc" ]
     } else if (is_linux && use_allocator == "none") {
       sources += [ "allocator/allocator_shim_default_dispatch_to_glibc.cc" ]
     } else if (is_android && use_allocator == "none") {
       sources += [
         "allocator/allocator_shim_default_dispatch_to_linker_wrapped_symbols.cc",
         "allocator/allocator_shim_override_linker_wrapped_symbols.h",
       ]
       all_dependent_configs += [ "//base/allocator:wrap_malloc_symbols" ]
+    } else if (is_mac) {
+      sources += [
+        "allocator/allocator_shim_default_dispatch_to_zoned_malloc.cc",

[Primiano Tucci (use gerrit), 2017/01/28 05:10:02]

since this is mac only, can those two files have "mac" in their name? will make
it easier to make a sense out of the base/Allocator directory. proposals:

allocator_shim_default_dispatch_to_mac_zoned_malloc.{cc,h}
allocator_shim_default_dispatch_to_mac_malloc.{cc,h}
allocator_shim_default_dispatch_to_mac_system_allocator.{cc,h}
or anything else with "mac" in the name 

[erikchen, 2017/01/31 02:21:22]

Done.

+        "allocator/allocator_shim_default_dispatch_to_zoned_malloc.h",
+        "allocator/allocator_shim_override_mac_symbols.h",
+      ]
     }
   }
 
   # Allow more direct string conversions on platforms with native utf8
   # strings
   if (is_mac || is_ios || is_chromeos || is_chromecast) {
     defines += [ "SYSTEM_NATIVE_UTF8" ]
   }
 
   # Android.
@@ skipping 1461 matching lines @@
 }
 
 fuzzer_test("base_json_correctness_fuzzer") {
   sources = [
     "json/correctness_fuzzer.cc",
   ]
   deps = [
     ":base",
   ]
 }