[HttpJob] Record bytes read for requests

net/url_request/url_request_http_job.cc

Index: net/url_request/url_request_http_job.cc
diff --git a/net/url_request/url_request_http_job.cc b/net/url_request/url_request_http_job.cc
index 6934c78006ce18b4cebbc351cbadcdc51345e17d..afa90e22da74a176bdf69b9104fbd8fbe04fbce4 100644
--- a/net/url_request/url_request_http_job.cc
+++ b/net/url_request/url_request_http_job.cc
@@ -1484,12 +1484,25 @@ void URLRequestHttpJob::RecordPerfHistograms(CompletionCause reason) {
                                    total_time);
       }
     }
+
+    UMA_HISTOGRAM_CUSTOM_COUNTS("Net.HttpJob.PrefilterBytesRead",
+                                prefilter_bytes_read(), 1, 50000000, 50);
     if (response_info_->was_cached) {
       UMA_HISTOGRAM_TIMES("Net.HttpJob.TotalTimeCached", total_time);
+      UMA_HISTOGRAM_CUSTOM_COUNTS("Net.HttpJob.PrefilterBytesRead.Cache",
+                                  prefilter_bytes_read(), 1, 50000000, 50);
+
       if (response_info_->unused_since_prefetch)
         UMA_HISTOGRAM_COUNTS("Net.Prefetch.HitBytes", prefilter_bytes_read());
     } else {
       UMA_HISTOGRAM_TIMES("Net.HttpJob.TotalTimeNotCached", total_time);
+      UMA_HISTOGRAM_CUSTOM_COUNTS("Net.HttpJob.PrefilterBytesRead.Net",
+                                  prefilter_bytes_read(), 1, 50000000, 50);
+
+      if (request_info_.load_flags & LOAD_PREFETCH) {
+        UMA_HISTOGRAM_COUNTS("Net.Prefetch.PrefilterBytesReadFromNetwork",
+                             prefilter_bytes_read());
+      }
       if (is_https_google) {
         if (used_quic) {
           UMA_HISTOGRAM_MEDIUM_TIMES(
@@ -1502,10 +1515,6 @@ void URLRequestHttpJob::RecordPerfHistograms(CompletionCause reason) {
     }
   }
 
-  if (request_info_.load_flags & LOAD_PREFETCH && !request_->was_cached())
-    UMA_HISTOGRAM_COUNTS("Net.Prefetch.PrefilterBytesReadFromNetwork",
-                         prefilter_bytes_read());
-
   start_time_ = base::TimeTicks();
 }