devel/electron27: Fix build with ninja 1.12.0

Fix race conditions where generated headers are not created before they
are needed in the build.

Ninja 1.12.0 removed the `-w dupbuild` option and the default behavior
is now equivalent to passing `-w dupbuild=err` in previous versions.

PR:		278693
Approved by:	portmgr (blanket)

devel/electron27/files/patch-net_dns_BUILD.gn

@@ -1,4 +1,4 @@
---- net/dns/BUILD.gn.orig	2023-08-20 00:00:07 UTC
+--- net/dns/BUILD.gn.orig	2024-05-15 03:41:02 UTC
 +++ net/dns/BUILD.gn
 @@ -128,7 +128,7 @@ source_set("dns") {
        "dns_config_service_android.cc",
@@ -9,15 +9,25 @@
      sources += [
        "dns_config_service_linux.cc",
        "dns_config_service_linux.h",
-@@ -169,6 +169,7 @@ source_set("dns") {
+@@ -162,6 +162,9 @@ source_set("dns") {
+   }
+
+   deps = [ "//net:net_deps" ]
++  if (is_bsd) {
++    deps += [ "//components/services/screen_ai/buildflags" ]
++  }
+
+   public_deps = [
+     ":dns_client",
+@@ -169,6 +172,7 @@ source_set("dns") {
      ":host_resolver_manager",
      ":mdns_client",
      "//net:net_public_deps",
 +    "//printing/buildflags",
    ]
 
    allow_circular_includes_from = [
-@@ -436,9 +437,9 @@ source_set("tests") {
+@@ -436,9 +440,9 @@ source_set("tests") {
 
    if (is_android) {
      sources += [ "dns_config_service_android_unittest.cc" ]

devel/electron27/files/patch-tools_gn_bootstrap_bootstrap.py

@@ -0,0 +1,11 @@
+--- tools/gn/bootstrap/bootstrap.py.orig	2023-11-01 19:30:06 UTC
++++ tools/gn/bootstrap/bootstrap.py
+@@ -122,7 +122,7 @@ def main(argv):
+ 
+   shutil.copy2(
+       os.path.join(BOOTSTRAP_DIR, 'last_commit_position.h'), gn_build_dir)
+-  cmd = [ninja_binary, '-C', gn_build_dir, '-w', 'dupbuild=err', 'gn']
++  cmd = [ninja_binary, '-C', gn_build_dir, 'gn']
+   if options.jobs:
+     cmd += ['-j', str(options.jobs)]
+   subprocess.check_call(cmd)