Adding new SSL Connection Error/Latency 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 8f35d28c008de769a171467492c12edff08e8c16..3b4f20887d8aa3e109e8329587f1bbc3319113d4 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -36651,6 +36651,23 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Net.SSL_Connection_Error_Google" units="NetErrorCodes">
+  <owner>svaldez@chromium.org</owner>
+  <summary>
+    Counts of specific error codes returned when opening an SSL connection for
+    google.com and any subdomain of it.
+  </summary>
+</histogram>
+
+<histogram name="Net.SSL_Connection_Error_TLS13Experiment"
+    units="NetErrorCodes">
+  <owner>svaldez@chromium.org</owner>
+  <summary>
+    Counts of specific error codes returned when opening an SSL connection for
+    an endpoint we are using in the initial TLS 1.3 deployment.
+  </summary>
+</histogram>
+
 <histogram name="Net.SSL_Connection_Latency" units="ms">
   <obsolete>
     Replaced by Net.SSL_Connection_Latency_2 on 2014-10-21.
@@ -36766,6 +36783,14 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Net.SSL_Connection_Latency_TLS13Experiment" units="ms">
+  <owner>svaldez@chromium.org</owner>
+  <summary>
+    Time from when the Connect() starts until it completes for a set of domains
+    that we are using in the initial TLS 1.3 deployment.
+  </summary>
+</histogram>
+
 <histogram name="Net.SSL_Connection_PostQuantum_Negotiated"
     enum="BooleanSupported">
   <obsolete>