Create MetricsPrivateDelegate for metricsPrivate behavior

extensions/shell/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/features.gni")
 import("//build/config/ui.gni")
 import("//build/util/process_version.gni")
 import("//testing/test.gni")
 import("//tools/grit/grit_rule.gni")
 
@@ skipping 47 matching lines @@
     "//v8",
   ]
 
   sources = [
     "app/paths_mac.h",
     "app/paths_mac.mm",
     "app/shell_main_delegate.cc",
     "app/shell_main_delegate.h",
     "browser/api/identity/identity_api.cc",
     "browser/api/identity/identity_api.h",
+    "browser/api/metrics_private/shell_metrics_private_delegate.cc",
+    "browser/api/metrics_private/shell_metrics_private_delegate.h",
     "browser/default_shell_browser_main_delegate.cc",
     "browser/default_shell_browser_main_delegate.h",
     "browser/desktop_controller.cc",
     "browser/desktop_controller.h",
     "browser/media_capture_util.cc",
     "browser/media_capture_util.h",
     "browser/shell_app_delegate.cc",
     "browser/shell_app_delegate.h",
     "browser/shell_app_view_guest_delegate.cc",
     "browser/shell_app_view_guest_delegate.h",
@@ skipping 265 matching lines @@
     "//extensions/browser",
   ]
 
   if (is_chromeos) {
     deps += [
       "//chromeos:test_support",
       "//components/keyed_service/content",
     ]
   }
 }