Update existing uses of /wd4267 to use the GN config

cc/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("//testing/test.gni")
 
 component("cc") {
   sources = [
     "animation/animation.cc",
     "animation/animation.h",
@@ skipping 518 matching lines @@
     "trees/proxy_timing_history.h",
     "trees/scoped_abort_remaining_swap_promises.h",
     "trees/single_thread_proxy.cc",
     "trees/single_thread_proxy.h",
     "trees/thread_proxy.cc",
     "trees/thread_proxy.h",
     "trees/tree_synchronizer.cc",
     "trees/tree_synchronizer.h",
   ]
 
-  if (is_win) {
-    # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
-    cflags = [ "/wd4267" ]  # size_t -> int
-  }
+  # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
+  configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   public_deps = [
     "//skia",
   ]
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
     "//cc/surfaces:surface_id",
     "//gpu",
     "//gpu/command_buffer/client:gles2_interface",
@@ skipping 137 matching lines @@
     "test/test_texture.cc",
     "test/test_texture.h",
     "test/test_tile_priorities.cc",
     "test/test_tile_priorities.h",
     "test/test_web_graphics_context_3d.cc",
     "test/test_web_graphics_context_3d.h",
     "test/tiled_layer_test_common.cc",
     "test/tiled_layer_test_common.h",
   ]
 
+  configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
+
   include_dirs = [
     ".",
     "test",
   ]
 
   public_deps = [
     ":cc",
     "//gpu:test_support",
   ]
   deps = [
@@ skipping 204 matching lines @@
     "//media",
     "//skia",
     "//testing/gmock",
     "//testing/gtest",
     "//testing/perf",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/gl",
   ]
 }