electron-source.electron_38: init at 38.0.0

https://github.com/electron/electron/releases/tag/v38.0.0

pkgs/development/tools/electron/common.nix

@@ -218,6 +218,9 @@ in
     echo 'checkout_glic_e2e_tests = false' >> build/config/gclient_args.gni
     echo 'checkout_mutter = false' >> build/config/gclient_args.gni
   ''
+  + lib.optionalString (lib.versionAtLeast info.version "38") ''
+    echo 'checkout_clusterfuzz_data = false' >> build/config/gclient_args.gni
+  ''
   + base.postPatch;
 
   preConfigure = ''
@@ -261,11 +264,13 @@ in
     enable_dangling_raw_ptr_feature_flag = false;
     clang_unsafe_buffers_paths = "";
     enterprise_cloud_content_analysis = false;
-    content_enable_legacy_ipc = true;
 
     # other
     enable_widevine = false;
     override_electron_version = info.version;
+  }
+  // lib.optionalAttrs (lib.versionOlder info.version "38") {
+    content_enable_legacy_ipc = true;
   };
 
   installPhase = ''

pkgs/top-level/all-packages.nix

@@ -6477,6 +6477,11 @@ with pkgs;
       electron-source.electron_37
     else
       electron_37-bin;
+  electron_38 =
+    if lib.meta.availableOn stdenv.hostPlatform electron-source.electron_38 then
+      electron-source.electron_38
+    else
+      electron_38-bin;
   electron = electron_37;
   electron-bin = electron_37-bin;
   electron-chromedriver = electron-chromedriver_37;