Move args from chrome_cleaner/constants/BUILD.gn to a .gni file.

This lets the args be included from other directories.

Also fix the license in REPORTER_BRANDING and CLEANER_BRANDING.

R=csharp

Bug: 830892
Change-Id: Ia753c988579ee65a969aa07103677b80da0eede4
Reviewed-on: https://chromium-review.googlesource.com/1216707Reviewed-by: Chris Sharp <csharp@chromium.org>
Commit-Queue: Joe Mason <joenotcharles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590305}

chrome/chrome_cleaner/constants/BUILD.gn

@@ -3,15 +3,8 @@
 # found in the LICENSE file.
 
 import("//build/config/chrome_build.gni")
-import("//build/util/lastchange.gni")
 import("//build/util/process_version.gni")
-
-declare_args() {
-  reporter_branding_path = "REPORTER_BRANDING"
-  cleaner_branding_path = "CLEANER_BRANDING"
-  version_path = "VERSION"
-  lastchange_path = lastchange_file
-}
+import("//chrome/chrome_cleaner/constants/args.gni")
 
 process_version("version_header") {
   sources = [

chrome/chrome_cleaner/constants/CLEANER_BRANDING

@@ -4,4 +4,4 @@ PRODUCT_FULLNAME=Chrome Cleanup Tool
 PRODUCT_SHORTNAME=Chrome Cleanup Tool
 PRODUCT_INSTALLER_FULLNAME=Chrome Cleanup Tool Installer
 PRODUCT_INSTALLER_SHORTNAME=Chrome Cleanup Tool Installer
-COPYRIGHT=Copyright 2015 Google Inc. All Rights Reserved.
+COPYRIGHT=Copyright 2018 The Chromium Authors. All rights reserved.

chrome/chrome_cleaner/constants/REPORTER_BRANDING

@@ -4,4 +4,4 @@ PRODUCT_FULLNAME=Software Reporter Tool
 PRODUCT_SHORTNAME=Software Reporter Tool
 PRODUCT_INSTALLER_FULLNAME=Software Reporter Tool Installer
 PRODUCT_INSTALLER_SHORTNAME=Software Reporter Tool Installer
-COPYRIGHT=Copyright 2015 Google Inc. All Rights Reserved.
+COPYRIGHT=Copyright 2018 The Chromium Authors. All rights reserved.

chrome/chrome_cleaner/constants/args.gni

+# Copyright 2018 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/util/lastchange.gni")
+
+declare_args() {
+  reporter_branding_path = "//chrome/chrome_cleaner/constants/REPORTER_BRANDING"
+  cleaner_branding_path = "//chrome/chrome_cleaner/constants/CLEANER_BRANDING"
+  version_path = "//chrome/chrome_cleaner/constants/VERSION"
+  lastchange_path = lastchange_file
+}