Add immediate variants of doc.write page load metrics

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 26cfe263fa776daa2fff4857e0ffacc1449b56b4..5c02507379d62cb68ed9c39a04e9da57f4098249 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -96513,6 +96513,12 @@ To add a new entry, add it with any value and run test to compute valid value.
 
 <histogram_suffixes name="PageLoadBackgrounded2" separator=".">
   <affected-histogram
+      name="PageLoad.Clients.DocWrite.Block.ParseTiming.ParseBlockedOnScriptLoad"/>
+  <affected-histogram
+      name="PageLoad.Clients.DocWrite.Block.ParseTiming.ParseBlockedOnScriptLoadFromDocumentWrite"/>
+  <affected-histogram
+      name="PageLoad.Clients.DocWrite.Block.ParseTiming.ParseDuration"/>
+  <affected-histogram
       name="PageLoad.Clients.DocWrite.Block.Timing2.ParseBlockedOnScriptLoad"/>
   <affected-histogram
       name="PageLoad.Clients.DocWrite.Block.Timing2.ParseBlockedOnScriptLoad.ParseComplete"/>
@@ -96523,6 +96529,15 @@ To add a new entry, add it with any value and run test to compute valid value.
   <affected-histogram
       name="PageLoad.Clients.DocWrite.Block.Timing2.ParseDuration"/>
   <affected-histogram
+      name="PageLoad.Clients.DocWrite.Evaluator.PaintTiming.NavigationToFirstContentfulPaint"/>
+  ;
+  <affected-histogram
+      name="PageLoad.Clients.DocWrite.Evaluator.ParseTiming.ParseBlockedOnScriptLoad"/>
+  <affected-histogram
+      name="PageLoad.Clients.DocWrite.Evaluator.ParseTiming.ParseBlockedOnScriptLoadFromDocumentWrite"/>
+  <affected-histogram
+      name="PageLoad.Clients.DocWrite.Evaluator.ParseTiming.ParseDuration"/>
+  <affected-histogram
       name="PageLoad.Clients.DocWrite.Evaluator.Timing2.NavigationToFirstContentfulPaint"/>
   <affected-histogram
       name="PageLoad.Clients.DocWrite.Evaluator.Timing2.ParseBlockedOnScriptLoad"/>
@@ -96648,6 +96663,9 @@ To add a new entry, add it with any value and run test to compute valid value.
   <affected-histogram
       name="PageLoad.PaintTiming.ParseStartToFirstContentfulPaint"/>
   <affected-histogram name="PageLoad.ParseTiming.NavigationToParseStart"/>
+  <affected-histogram name="PageLoad.ParseTiming.ParseBlockedOnScriptLoad"/>
+  <affected-histogram
+      name="PageLoad.ParseTiming.ParseBlockedOnScriptLoadFromDocumentWrite"/>
   <affected-histogram name="PageLoad.ParseTiming.ParseDuration"/>
   <suffix name="Clients.FromGWS"
       label="PageLoadMetrics that are a result of a navigation from a Google