Sending a page load pingback to data saver for holdback users

chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer.cc

Index: chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer.cc
diff --git a/chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer.cc b/chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer.cc
index 5e05b1b122ff8f69e914298526bf21326d8853f9..6f5b75b4236ed663dd17106d0c8ed913127b2a00 100644
--- a/chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer.cc
+++ b/chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer.cc
@@ -152,6 +152,7 @@ DataReductionProxyMetricsObserver::OnCommit(
   data_ = data->DeepCopy();
   // DataReductionProxy page loads should only occur on HTTP navigations.
   DCHECK(!navigation_handle->GetURL().SchemeIsCryptographic());
+  DCHECK_EQ(data_->request_url(), navigation_handle->GetURL());
   return CONTINUE_OBSERVING;
 }
 
@@ -278,10 +279,6 @@ void DataReductionProxyMetricsObserver::SendPingback(
   // shutdown cases. crbug.com/618072
   if (!browser_context_ || !data_)
     return;
-  if (data_reduction_proxy::params::IsIncludedInHoldbackFieldTrial() ||
-      data_reduction_proxy::params::IsIncludedInTamperDetectionExperiment()) {
-    return;
-  }
   // Only consider timing events that happened before the first background
   // event.
   base::Optional<base::TimeDelta> response_start;