[Mac/iOS/GN] Re-purpose the ios_compile_xib.py file to also handle Mac XIBs.

build/config/ios/rules.gni

 # Copyright 2015 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/config/ios/ios_sdk.gni")
 import("//build/config/mac/rules.gni")
 
 # TODO(crbug.com/297668): refactor this template to extract common behaviour
 # between OS X and iOS bundle generation, then create a generic "app" template
 # that forward to "executable" on all platform except iOS/OS X.
@@ skipping 170 matching lines @@
 template("bundle_data_xib") {
   assert(defined(invoker.source), "source needs to be defined for $target_name")
 
   _source_extension = get_path_info(invoker.source, "extension")
   assert(_source_extension == "xib" || _source_extension == "storyboard",
          "source must be a .xib or .storyboard for $target_name")
 
   _target_name = target_name
   _compile_xib = target_name + "_compile_xib"
 
-  _nib_basename = get_path_info(invoker.source, "name")
-  _nib_filename = "$_nib_basename.nib"
-
-  action(_compile_xib) {
-    visibility = [ ":$_target_name" ]
-    script = "//build/config/ios/ios_compile_xib.py"
+  compile_xibs(_compile_xib) {
     sources = [
       invoker.source,
     ]
-    outputs = [
-      "$target_gen_dir/$_nib_filename",
-    ]
-    args = [
+    visibility = [ ":$_target_name" ]
+    ibtool_flags = [
       "--minimum-deployment-target",
       ios_deployment_target,
-      "--output",
-      rebase_path("$target_gen_dir/$_nib_filename"),
-      "--input",
-      rebase_path(invoker.source, root_out_dir),
+      "--auto-activate-custom-fonts",
+      "--target-device",
+      "iphone",
+      "--target-device",
+      "ipad",
     ]
   }
 
   bundle_data(_target_name) {
     forward_variables_from(invoker, "*", [ "source" ])
 
     if (!defined(public_deps)) {
       public_deps = []
     }
     public_deps += [ ":$_compile_xib" ]
 
-    sources = [
-      "$target_gen_dir/$_nib_filename",
-    ]
+    sources = get_target_outputs(":$_compile_xib")
+
     outputs = [
-      "{{bundle_resources_dir}}/$_nib_filename",
+      "{{bundle_resources_dir}}/{{source_file_part}}",
     ]
   }
 }
 
 # Template to package a shared library into an iOS framework bundle.
 #
 # Arguments
 #
 #     output_name:
 #         (optional) string, name of the generated framework without the
@@ skipping 134 matching lines @@
                                "visibility",
                                "public_configs",
                              ])
 
       public_deps = [
         ":$_framework_target",
       ]
     }
   }
 }