[ObjC ARC] Converts ios/chrome/browser/reading_list:unit_tests to ARC.Automatically generated ARC…

ios/chrome/browser/reading_list/BUILD.gn

 # Copyright 2016 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.
 
 source_set("reading_list") {
   sources = [
     "offline_url_utils.cc",
     "offline_url_utils.h",
     "reading_list_download_service.cc",
     "reading_list_download_service.h",
@@ skipping 35 matching lines @@
     "//ios/web",
     "//net",
     "//url",
   ]
   public_deps = [
     "//ios/chrome/browser/dom_distiller",
   ]
 }
 
 source_set("unit_tests") {
+  configs += [ "//build/config/compiler:enable_arc" ]

[Olivier, 2016/11/21 16:17:42]

I don't understand the point on a C++ target.

[stkhapugin, 2016/11/21 17:03:32]

Should we ever add an objective-c file here, this will force people to write
ARC. 

   testonly = true
   sources = [
     "offline_url_utils_unittest.cc",
     "reading_list_entry_unittest.cc",
     "reading_list_model_unittest.cc",
     "reading_list_store_unittest.cc",
     "url_downloader_unittest.cc",
   ]
   deps = [
     ":reading_list",
     "//base",
     "//base/test:test_support",
     "//components/sync:test_support_model",
     "//components/sync/protocol",
     "//ios/chrome/browser",
     "//ios/chrome/browser/dom_distiller",
     "//ios/chrome/browser/reading_list/proto",
     "//ios/web:test_support",
     "//testing/gtest",
     "//url",
   ]
 }