Generalize abort tracking to page end state tracking

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 f5d4032aa24dbd8c475312ebe7874911464a308d..29ba69cbf9901a8686829fdd2adacd8c7d29c3e5 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -44019,6 +44019,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram base="true" name="PageLoad.Experimental.AbortTiming.ClientRedirect"
     units="ms">
+  <obsolete>
+    Deprecated in favor of PageLoad.Internal.ClientRedirect.*.
+  </obsolete>
   <owner>csharrison@chromium.org</owner>
   <summary>
     This metric is still experimental and not yet ready to be relied upon.
@@ -44397,6 +44400,59 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="PageLoad.PageTiming.FirstPaintToFirstBackground" units="ms">
+  <owner>bmcquade@chromium.org</owner>
+  <summary>
+    Measures the total time the page load was active after first paint, up until
+    being backgrounded, for page loads that started in the foreground.
+  </summary>
+</histogram>
+
+<histogram name="PageLoad.PageTiming.FirstPaintToPageEnd" units="ms">
+  <owner>bmcquade@chromium.org</owner>
+  <summary>
+    Measures the total time the page load was active after first paint, for page
+    loads that spend the entire time in the foreground.
+  </summary>
+</histogram>
+
+<histogram name="PageLoad.PageTiming.NavigationToFailedProvisionalLoad"
+    units="ms">
+  <owner>bmcquade@chromium.org</owner>
+  <owner>shivanisha@chromium.org</owner>
+  <summary>
+    Measures the time from navigation timing's navigation start to the time the
+    provisional load failed. Only measures provisional loads that failed in the
+    foreground.
+  </summary>
+</histogram>
+
+<histogram name="PageLoad.PageTiming.NavigationToFirstBackground" units="ms">
+  <owner>bmcquade@chromium.org</owner>
+  <summary>
+    Measures the total time the page load was active, up until being
+    backgrounded, for page loads that started in the foreground.
+  </summary>
+</histogram>
+
+<histogram name="PageLoad.PageTiming.NavigationToFirstForeground" units="ms">
+  <owner>bmcquade@chromium.org</owner>
+  <owner>csharrison@chromium.org</owner>
+  <summary>
+    Measures the time from navigation timing's navigation start to the time the
+    user first foregrounds an initially backgrounded tab. Only measures
+    navigations that started in the background.
+  </summary>
+</histogram>
+
+<histogram name="PageLoad.PageTiming.NavigationToPageEnd" units="ms">
+  <owner>bmcquade@chromium.org</owner>
+  <summary>
+    Measures the total time the page load was active, for page loads that spend
+    the entire time in the foreground.
+  </summary>
+</histogram>
+
 <histogram name="PageLoad.PaintTiming.ForegroundToFirstPaint" units="ms">
   <owner>pkotwicz@chromium.org</owner>
   <summary>
@@ -44612,6 +44668,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="PageLoad.Timing2.NavigationToFailedProvisionalLoad" units="ms">
+  <obsolete>
+    deprecated in favor of PageLoad.PageTiming.NavigationToFailedProvisionalLoad
+  </obsolete>
   <owner>bmcquade@chromium.org</owner>
   <owner>shivanisha@chromium.org</owner>
   <summary>
@@ -44647,6 +44706,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="PageLoad.Timing2.NavigationToFirstForeground" units="ms">
+  <obsolete>
+    deprecated in favor of PageLoad.PageTiming.NavigationToFirstForeground
+  </obsolete>
   <owner>bmcquade@chromium.org</owner>
   <owner>csharrison@chromium.org</owner>
   <summary>
@@ -95330,6 +95392,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
              (deprecated)"/>
   <int value="8" label="Inter process TimeTicks skew"/>
   <int value="9" label="No commit or failed provisional load received"/>
+  <int value="10" label="No page load end time recorded"/>
 </enum>
 
 <enum name="InterruptReason" type="int">