Create MetricsPrivateDelegate for metricsPrivate behavior

extensions/browser/api/extensions_api_client.cc

 // 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.
 
 #include "extensions/browser/api/extensions_api_client.h"
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "extensions/browser/api/device_permissions_prompt.h"
+#include "extensions/browser/api/metrics_private/metrics_private_delegate.h"
 #include "extensions/browser/api/virtual_keyboard_private/virtual_keyboard_delegate.h"
 #include "extensions/browser/api/web_request/web_request_event_router_delegate.h"
 #include "extensions/browser/guest_view/extensions_guest_view_manager_delegate.h"
 #include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest_delegate.h"
 #include "extensions/browser/guest_view/web_view/web_view_permission_helper_delegate.h"
 
 namespace extensions {
 class AppViewGuestDelegate;
 
 namespace {
@@ skipping 72 matching lines @@
 std::unique_ptr<VirtualKeyboardDelegate>
 ExtensionsAPIClient::CreateVirtualKeyboardDelegate() const {
   return nullptr;
 }
 
 ManagementAPIDelegate* ExtensionsAPIClient::CreateManagementAPIDelegate()
     const {
   return nullptr;
 }
 
+std::unique_ptr<MetricsPrivateDelegate>
+ExtensionsAPIClient::CreateMetricsPrivateDelegate() const {
+  return nullptr;
+}
+
 }  // namespace extensions