Create FakeProviders for NativeAppMetadata and NativeAppManager

ios/public/provider/chrome/browser/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("//build/buildflag_header.gni")
 import("//ios/public/provider/chrome/browser/build_config.gni")
 
 source_set("browser") {
   sources = [
     "chrome_browser_provider.h",
     "chrome_browser_provider.mm",
     "distribution/app_distribution_provider.h",
     "distribution/app_distribution_provider.mm",
     "geolocation_updater_provider.h",
     "geolocation_updater_provider.mm",
     "images/branded_image_provider.h",
     "images/branded_image_provider.mm",
     "images/whats_new_icon.h",
+    "native_app_launcher/fake_native_app_metadata.h",

[rohitrao (ping after 24h), 2016/11/25 00:34:38]

These should move down into the "test_support" target.  That will help ensure we
never accidentally ship them with the main app.

[sdefresne, 2016/11/25 08:41:57]

+1

[sczs1, 2016/11/26 04:10:18]

Right, didn't think of that! 
I've now created a new build.gn for native_app_launcher and enabled ARC on both
source_sets.

+    "native_app_launcher/fake_native_app_metadata.mm",
+    "native_app_launcher/fake_native_app_whitelist_manager.h",
+    "native_app_launcher/fake_native_app_whitelist_manager.mm",
     "native_app_launcher/native_app_metadata.h",
     "native_app_launcher/native_app_types.h",
     "native_app_launcher/native_app_whitelist_manager.h",
     "omaha/omaha_service_provider.h",
     "omaha/omaha_service_provider.mm",
     "sessions/live_tab_context_provider.h",
     "signin/chrome_identity.h",
     "signin/chrome_identity.mm",
     "signin/chrome_identity_browser_opener.h",
     "signin/chrome_identity_interaction_manager.h",
@@ skipping 100 matching lines @@
     "//base",
     "//components/signin/ios/browser:test_support",
     "//components/sync_sessions",
     "//ios/chrome/app/theme",
     "//testing/gtest",
   ]
   public_deps = [
     "//testing/gmock",
   ]
 }