Allow the app banner installability check to run on page load.

chrome/browser/BUILD.gn

 # Copyright 2014 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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
@@ skipping 482 matching lines @@
     "install_verification/win/module_ids.h",
     "install_verification/win/module_info.h",
     "install_verification/win/module_list.cc",
     "install_verification/win/module_list.h",
     "install_verification/win/module_verification_common.cc",
     "install_verification/win/module_verification_common.h",
     "installable/installable_logging.cc",
     "installable/installable_logging.h",
     "installable/installable_manager.cc",
     "installable/installable_manager.h",
+    "installable/installable_metrics.cc",
+    "installable/installable_metrics.h",
     "internal_auth.cc",
     "internal_auth.h",
     "interstitials/chrome_controller_client.cc",
     "interstitials/chrome_controller_client.h",
     "interstitials/chrome_metrics_helper.cc",
     "interstitials/chrome_metrics_helper.h",
     "intranet_redirect_detector.cc",
     "intranet_redirect_detector.h",
     "invalidation/profile_invalidation_provider_factory.cc",
     "invalidation/profile_invalidation_provider_factory.h",
@@ skipping 4119 matching lines @@
 
 service_manifest("preferences_manifest") {
   name = "preferences"
   source = "prefs/preferences_manifest.json"
 }
 
 service_manifest("preferences_forwarder_manifest") {
   name = "preferences_forwarder"
   source = "prefs/forwarder_manifest.json"
 }