Update existing uses of /wd4267 to use the GN config

third_party/cld/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.
 
 config("cld_config") {
   defines = [ "CLD_WINDOWS" ]
   include_dirs = [ "." ]
 }
 
 source_set("cld") {
@@ skipping 84 matching lines @@
   ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
   public_configs = [ ":cld_config" ]
 
   if (is_win) {
     defines = [ "COMPILER_MSVC" ]
     cflags = [
       "/wd4005",  # Macro defined twice.
       "/wd4006",  # #undef expected an identifier.
       "/wd4309",  # Truncation of constant value.
-      "/wd4267",  # TODO(jschuh): C4267: http://crbug.com/167187 size_t -> int
     ]
   } else {
     defines = [ "COMPILER_GCC" ]
   }
 
   public_deps = [
     "//third_party/icu:icuuc",
   ]
 }