[Mac/GN] Add missing -Wglobal-constructors to //third_party/WebKit.

third_party/WebKit/Source/core/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/chrome_build.gni")
 import("//build/config/ui.gni")
 import("//third_party/WebKit/Source/bindings/bindings.gni")
 import("//third_party/WebKit/Source/bindings/core/v8/generated.gni")
 import("//third_party/WebKit/Source/bindings/modules/modules.gni")
 import("//third_party/WebKit/Source/bindings/modules/v8/generated.gni")
@@ skipping 14 matching lines @@
 if (is_debug || !is_win || !is_official_build) {
   # NOP.
   core_config_add = []
   core_config_remove = []
 } else {
   core_config_remove = [ "//build/config/compiler:default_optimization" ]
   core_config_add = [ "//build/config/compiler:optimize_max" ]
 }
 
 # Core targets also get wexit time destructors.
-core_config_add += [ "//build/config/compiler:wexit_time_destructors" ]
+core_config_add += [
+  "//build/config/compiler:wexit_time_destructors",
+  "//third_party/WebKit/Source:non_test_config",
+]
 
 if (remove_webcore_debug_symbols) {
   core_config_remove += [ "//build/config/compiler:default_symbols" ]
   core_config_add += [ "//build/config/compiler:no_symbols" ]
 }
 
 # Config for code that builds as part of core.
 config("config") {
   defines = [ "BLINK_CORE_IMPLEMENTATION=1" ]
 
@@ skipping 1031 matching lines @@
     "$blink_core_output_dir/{{source_name_part}}.h",
   ]
   args = [
     "{{source}}",
     rel_blink_core_gen_dir,
     bison_exe,
   ]
 
   deps = make_core_generated_deps
 }