Create MetricsPrivateDelegate for metricsPrivate behavior

chrome/browser/extensions/api/chrome_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 "chrome/browser/extensions/api/chrome_extensions_api_client.h"
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/memory/ptr_util.h"
 #include "build/build_config.h"
 #include "chrome/browser/extensions/api/chrome_device_permissions_prompt.h"
 #include "chrome/browser/extensions/api/declarative_content/chrome_content_rules_registry.h"
 #include "chrome/browser/extensions/api/declarative_content/default_content_predicate_evaluators.h"
 #include "chrome/browser/extensions/api/management/chrome_management_api_delegate.h"
+#include "chrome/browser/extensions/api/metrics_private/chrome_metrics_private_delegate.h"
 #include "chrome/browser/extensions/api/storage/managed_value_store_cache.h"
 #include "chrome/browser/extensions/api/storage/sync_value_store_cache.h"
 #include "chrome/browser/extensions/api/web_request/chrome_extension_web_request_event_router_delegate.h"
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "chrome/browser/favicon/favicon_utils.h"
 #include "chrome/browser/guest_view/app_view/chrome_app_view_guest_delegate.h"
 #include "chrome/browser/guest_view/chrome_guest_view_manager_delegate.h"
 #include "chrome/browser/guest_view/extension_options/chrome_extension_options_guest_delegate.h"
 #include "chrome/browser/guest_view/mime_handler_view/chrome_mime_handler_view_guest_delegate.h"
 #include "chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.h"
@@ skipping 123 matching lines @@
 #else
   return nullptr;
 #endif
 }
 
 ManagementAPIDelegate* ChromeExtensionsAPIClient::CreateManagementAPIDelegate()
     const {
   return new ChromeManagementAPIDelegate;
 }
 
+MetricsPrivateDelegate* ChromeExtensionsAPIClient::GetMetricsPrivateDelegate() {
+  if (!metrics_private_delegate_)
+    metrics_private_delegate_.reset(new ChromeMetricsPrivateDelegate());
+  return metrics_private_delegate_.get();
+}
+
 }  // namespace extensions