Add page-level aggregation of SubresourceFilter time metrics.

components/subresource_filter/content/renderer/subresource_filter_agent.cc

Index: components/subresource_filter/content/renderer/subresource_filter_agent.cc
diff --git a/components/subresource_filter/content/renderer/subresource_filter_agent.cc b/components/subresource_filter/content/renderer/subresource_filter_agent.cc
index db21784a07a82402e299f75fb1a940ddb9fffb52..bf6ac6f618ea407de03710b06a8cb6686867646f 100644
--- a/components/subresource_filter/content/renderer/subresource_filter_agent.cc
+++ b/components/subresource_filter/content/renderer/subresource_filter_agent.cc
@@ -12,6 +12,7 @@
 #include "components/subresource_filter/content/renderer/document_subresource_filter.h"
 #include "components/subresource_filter/content/renderer/ruleset_dealer.h"
 #include "components/subresource_filter/core/common/memory_mapped_ruleset.h"
+#include "components/subresource_filter/core/common/scoped_timers.h"
 #include "components/subresource_filter/core/common/time_measurements.h"
 #include "content/public/common/browser_side_navigation_policy.h"
 #include "content/public/renderer/render_frame.h"
@@ -60,6 +61,14 @@ void SubresourceFilterAgent::
       render_frame()->GetRoutingID()));
 }
 
+void SubresourceFilterAgent::SendDocumentLoadStatistics(
+    base::TimeDelta evaluation_total_wall_duration,
+    base::TimeDelta evaluation_total_cpu_duration) {
+  render_frame()->Send(new SubresourceFilterHostMsg_DocumentLoadStatistics(
+      render_frame()->GetRoutingID(), evaluation_total_wall_duration,
+      evaluation_total_cpu_duration));
+}
+
 void SubresourceFilterAgent::OnActivateForProvisionalLoad(
     ActivationState activation_state,
     const GURL& url,
@@ -113,6 +122,9 @@ void SubresourceFilterAgent::RecordHistogramsOnLoadFinished() {
         statistics.evaluation_total_cpu_duration,
         base::TimeDelta::FromMicroseconds(1), base::TimeDelta::FromSeconds(10),
         50);
+
+    SendDocumentLoadStatistics(statistics.evaluation_total_wall_duration,
+                               statistics.evaluation_total_cpu_duration);
   }
 }