| Index: chrome/browser/page_load_metrics/page_load_metrics_initialize.cc | 
| diff --git a/chrome/browser/page_load_metrics/page_load_metrics_initialize.cc b/chrome/browser/page_load_metrics/page_load_metrics_initialize.cc | 
| index 2d4f07597e5443eec43d8ab8da9765f2c710ec34..055a84c0e9411b1d55a483c77106df21d60a96a4 100644 | 
| --- a/chrome/browser/page_load_metrics/page_load_metrics_initialize.cc | 
| +++ b/chrome/browser/page_load_metrics/page_load_metrics_initialize.cc | 
| @@ -20,6 +20,7 @@ | 
| #include "chrome/browser/page_load_metrics/observers/https_engagement_metrics/https_engagement_page_load_metrics_observer.h" | 
| #include "chrome/browser/page_load_metrics/observers/no_state_prefetch_page_load_metrics_observer.h" | 
| #include "chrome/browser/page_load_metrics/observers/previews_page_load_metrics_observer.h" | 
| +#include "chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.h" | 
| #include "chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h" | 
| #include "chrome/browser/page_load_metrics/page_load_metrics_embedder_interface.h" | 
| #include "chrome/browser/page_load_metrics/page_load_tracker.h" | 
| @@ -76,7 +77,8 @@ void PageLoadMetricsEmbedder::RegisterObservers( | 
| base::MakeUnique<ServiceWorkerPageLoadMetricsObserver>()); | 
| tracker->AddObserver(base::MakeUnique<HttpsEngagementPageLoadMetricsObserver>( | 
| web_contents_->GetBrowserContext())); | 
| -  tracker->AddObserver(base::WrapUnique(new CssScanningMetricsObserver())); | 
| +  tracker->AddObserver(base::MakeUnique<CssScanningMetricsObserver>()); | 
| +  tracker->AddObserver(base::MakeUnique<ProtocolPageLoadMetricsObserver>()); | 
| std::unique_ptr<page_load_metrics::PageLoadMetricsObserver> | 
| no_state_prefetch_observer = | 
| NoStatePrefetchPageLoadMetricsObserver::CreateIfNeeded(web_contents_); | 
|  |