chromium: add bootstrap gn patch

pkgs/applications/networking/browsers/chromium/common.nix

@@ -105,6 +105,7 @@ let
 
     patches = [
       ./patches/nix_plugin_paths_52.patch
+      ./patches/fix-bootstrap-gn.patch
     ] ++ optional (versionOlder version "57.0") ./patches/glibc-2.24.patch
       ++ optional enableWideVine ./patches/widevine.patch;
 

pkgs/applications/networking/browsers/chromium/patches/fix-bootstrap-gn.patch

@@ -0,0 +1,12 @@
+diff --git a/tools/gn/bootstrap/bootstrap.py b/tools/gn/bootstrap/bootstrap.py
+index 3148ccf..38cfb11 100755
+--- a/tools/gn/bootstrap/bootstrap.py
++++ b/tools/gn/bootstrap/bootstrap.py
+@@ -385,6 +385,7 @@ def write_gn_ninja(path, root_gen_dir, options):
+       'base/base_switches.cc',
+       'base/build_time.cc',
+       'base/callback_internal.cc',
++      'base/callback_helpers.cc',
+       'base/command_line.cc',
+       'base/debug/activity_tracker.cc',
+       'base/debug/alias.cc',