More changes to support hermetic Xcode toolchain in GN.

chrome/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/buildflag_header.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/features.gni")
 import("//build/config/locales.gni")
 import("//build/config/sanitizers/sanitizers.gni")
@@ skipping 893 matching lines @@
       sources = [
         framework_path,
         script,
       ]
 
       args = [
         rebase_path(framework_path, root_out_dir),
         rebase_path(output_path, root_out_dir),
       ]
 
+      if (!use_system_xcode) {
+        args += [ hermetic_xcode_path ]
+      }
+
       outputs = [
         "$output_path/KeystoneRegistration.framework",
       ]
     }
   } else {
     group("keystone_registration_framework") {
     }
   }
 
   tweak_info_plist("chrome_framework_plist") {
@@ skipping 630 matching lines @@
       "//chrome/app/theme/$branding_path_component/product_logo_48.png",
       "//chrome/tools/build/linux/chrome-wrapper",
       "//third_party/xdg-utils/scripts/xdg-mime",
       "//third_party/xdg-utils/scripts/xdg-settings",
     ]
     outputs = [
       "$root_out_dir/{{source_file_part}}",
     ]
   }
 }