Record time to navigation/tab-closed after HTTP-bad warning

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 959a5e988f5ffdb951f0d5b4c602978fc5636870..fcc743439072876053359434e3097e723942a5f4 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -57051,6 +57051,19 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram
+    name="Security.HTTPBad.NavigationStartedAfterUserWarnedAboutSensitiveInput"
+    units="ms">
+  <owner>estark@chromium.org</owner>
+  <summary>
+    Records the time from when a page was put into a warning state because of a
+    sensitive input on an HTTP page until a navigation starts. Recorded at most
+    once per main-frame navigation. The Finch trial 'mark-non-secure-as'
+    controls whether the user sees an omnibox warning for this state, or just a
+    console warning.
+  </summary>
+</histogram>
+
 <histogram name="Security.HTTPBad.UserWarnedAboutSensitiveInput"
     enum="BooleanShown">
   <obsolete>
@@ -57089,6 +57102,20 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram
+    name="Security.HTTPBad.WebContentsDestroyedAfterUserWarnedAboutSensitiveInput"
+    units="ms">
+  <owner>estark@chromium.org</owner>
+  <summary>
+    Records the time delta between when a page was put into a warning state
+    because of a sensitive input on an HTTP page and when the WebContents was
+    destroyed. Recorded at most once per main-frame navigation, and it is not
+    recorded if the user starts a navigation before the WebContents is
+    destroyed. The Finch trial 'mark-non-secure-as' controls whether the user
+    sees an omnibox warning for this state, or just a console warning.
+  </summary>
+</histogram>
+
 <histogram name="Security.PageInfo.Action.HttpsUrl.Dangerous"
     enum="WebsiteSettingsAction">
   <owner>estark@chromium.org</owner>