gn: Generalize process_version() and move it to build/util

chrome/installer/setup/BUILD.gn

 # 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("//chrome/version.gni")
+import("//chrome/process_version_rc_template.gni")
 import("//testing/test.gni")
 
 if (is_win) {
   executable("setup") {
     sources = [
       "setup.ico",
       "setup.rc",
       "setup_exe_version.rc.version",
       "setup_main.cc",
       "setup_main.h",
@@ skipping 55 matching lines @@
       "//components/crash/content/app:lib",
       "//components/crash/core/common",
       "//content/public/common:static_switches",
       "//courgette:courgette_lib",
       "//rlz:rlz_lib",
       "//third_party/bspatch",
       "//third_party/zlib",
     ]
   }
 
-  process_version("setup_exe_version") {
+  process_version_rc_template("setup_exe_version") {
     template_file = "setup_exe_version.rc.version"
     output = "$target_gen_dir/setup_exe_version.rc"
   }
 
   # This test covers the mini installer and setup tests.
   test("setup_unittests") {
     sources = [
       "archive_patch_helper_unittest.cc",
       "install_unittest.cc",
       "install_worker_unittest.cc",
@@ skipping 16 matching lines @@
       "//testing/gmock",
       "//testing/gtest",
     ]
 
     data = [
       "//chrome/installer/test/data/",
       "//chrome/test/data/installer/",
     ]
   }
 }