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 f7fd8937c039f19f0327adf824671dab93cf2849..24260c3d6fd95c7e123441e3a84f1adc0e921a7e 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -44074,6 +44074,9 @@ 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.
@@ -44215,6 +44218,24 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="PageLoad.Experimental.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.Experimental.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.Experimental.PaintTiming.FirstMeaningfulPaintSignalStatus"
     enum="FirstMeaningfulPaintSignalStatus">
@@ -44452,6 +44473,43 @@ 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.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.PaintTiming.ForegroundToFirstPaint" units="ms">
   <owner>pkotwicz@chromium.org</owner>
   <summary>
@@ -44667,6 +44725,9 @@ 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>
@@ -44702,6 +44763,9 @@ 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>
@@ -95405,6 +95469,7 @@ 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">
@@ -117721,6 +117786,14 @@ value.
   <affected-histogram name="PageLoad.ParseTiming.NavigationToParseStart"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="PageLoadMetricsNoEndTime" separator=".">
+  <suffix name="NoEndTime" label="The page load had no recorded end time."/>
+  <affected-histogram
+      name="PageLoad.Experimental.PageTiming.FirstPaintToPageEnd"/>
+  <affected-histogram
+      name="PageLoad.Experimental.PageTiming.NavigationToPageEnd"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="PageLoadMetricsUserGesture" separator=".">
   <suffix name="UserGesture"
       label="Restricted to pages loaded via a user gesture."/>