Update from https://crrev.com/307664

third_party/cython/rules.gni

 # 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.
 
 template("python_binary_module_sources") {
   # Only available on linux for now.
   assert(is_linux)
   assert(defined(invoker.sources))
 
   cython_root = "//third_party/cython"
@@ skipping 45 matching lines @@
     }
     if (defined(invoker.datadeps)) {
       datadeps = invoker.datadeps
     }
     sources = [
       cython_output,
     ]
     if (defined(invoker.additional_sources)) {
       sources += invoker.additional_sources
     }
+    if (defined(invoker.configs)) {
+      configs += invoker.configs
+    }
     all_dependent_configs = [ ":$config_name" ]
   }
 }
 
 template("python_binary_module") {
   # Only available on linux for now.
   assert(is_linux)
   assert(defined(invoker.sources))
   assert(defined(invoker.python_base_module))
 
   sources_target_name = target_name + "_cython_sources"
   shared_library_name = target_name + "_shared_library"
 
   if (is_linux) {
     shared_library_prefix = "lib"
     shared_library_suffix = ".so"
     python_module_suffix = ".so"
   }
 
   target_visibility = [
     ":$sources_target_name",
     ":$shared_library_name",
     ":$target_name",
   ]
 
   python_binary_module_sources(sources_target_name) {
     visibility = target_visibility
     sources = invoker.sources
+    if (defined(invoker.configs)) {
+      configs = invoker.configs
+    }
   }
 
   shared_library(shared_library_name) {
     visibility = target_visibility
     deps = [
       ":$sources_target_name",
     ]
     if (defined(invoker.deps)) {
       deps += invoker.deps
     }
@@ skipping 14 matching lines @@
       "$root_out_dir/${shared_library_prefix}${shared_library_name}${shared_library_suffix}",
     ]
     outputs = [
       "$root_out_dir/python/$python_base_module/${target_name}${python_module_suffix}",
     ]
     deps = [
       ":$shared_library_name",
     ]
   }
 }