Un-nest configs in GN files.

third_party/cld_2/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/features.gni")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
                           [ rebase_path("cld_2.gyp") ],
                           "scope",
                           [ "cld_2.gyp" ])
@@ skipping 15 matching lines @@
 #
 # Maintainers:
 # This value may be reasonably tweaked on a per-platform basis.
 # Don't forget to update this file as well to match:
 #   components/translate/content/browser/browser_cld_utils.cc
 #   components/translate/content/renderer/renderer_cld_utils.cc
 cld2_platform_support = "static"
 
 cld2_table_size = 2
 
+config("cld2_data_warnings") {
+  visibility = [ ":*" ]
+  if (is_clang) {
+    # The generated files don't have braces around subobject initializers.
+    cflags = [ "-Wno-missing-braces" ]
+  }
+}
+
 source_set("cld2_data") {
   sources = gypi_values.cld2_data_sources
   if (cld2_table_size == 0) {
     sources += gypi_values.cld2_data_smallest_sources
   } else if (cld2_table_size == 2) {
     sources += gypi_values.cld2_data_largest_sources
   }
 
   include_dirs = [
     "src/internal",
     "src/public",
   ]
 
-  config("cld2_data_warnings") {
-    if (is_clang) {
-      # The generated files don't have braces around subobject initializers.
-      cflags = [ "-Wno-missing-braces" ]
-    }
-  }
   configs -= [ "//build/config/compiler:chromium_code" ]
-  configs += [ "//build/config/compiler:no_chromium_code" ]
-  configs += [ ":cld2_data_warnings" ]
+  configs += [
+    ":cld2_data_warnings",
+    "//build/config/compiler:no_chromium_code",
+  ]
 }
 
 # As in the corresponding gyp file, this just builds the core interfaces for
 # CLD2. You must still declare a dependency on a specific data set, either
 # cld2_dynamic or cld2_static.
 source_set("cld_2") {
   sources = gypi_values.cld2_core_sources
   include_dirs = [
     "src/internal",
     "src/public",
@@ skipping 79 matching lines @@
       ":cld2_dynamic",
     ]
 
     configs -= [ "//build/config/compiler:chromium_code" ]
     configs += [
       ":cld2_dynamic_mode_config",
       "//build/config/compiler:no_chromium_code",
     ]
   }
 }