Removed Ash.AppList.TimeBetweenTaskSwitches and Ash.Tab.TimeBetweenSwitchToExistingTabUserActions h…

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 9feb3ec0d329b18716865e75508cb92ee9709ac2..c8ac3bc742a4bc8a29624b9e5f9fce727d9c3da2 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -1413,6 +1413,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Ash.AppList.TimeBetweenTaskSwitches" units="seconds">
+  <obsolete>
+    Deprecated 10/2016 for Issue 616581.
+  </obsolete>
   <owner>bruthig@chromium.org</owner>
   <owner>tdanderson@chromium.org</owner>
   <summary>
@@ -1715,6 +1718,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="Ash.Tab.TimeBetweenSwitchToExistingTabUserActions"
     units="seconds">
+  <obsolete>
+    Deprecated 10/2016 for Issue 616581.
+  </obsolete>
   <owner>bruthig@chromium.org</owner>
   <owner>tdanderson@chromium.org</owner>
   <summary>
@@ -1733,7 +1739,10 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
     Ash.Tab.TimeBetweenSwitchToExistingTabUserActions,
     Ash.WindowCycleController.TimeBetweenTaskSwitches,
     Ash.AppList.TimeBetweenTaskSwitches,
-    Ash.WindowSelector.TimeBetweenActiveWindowChanges, etc).
+    Ash.WindowSelector.TimeBetweenActiveWindowChanges, etc). Note the
+    Ash.AppList.TimeBetweenTaskSwitches and
+    Ash.Tab.TimeBetweenSwitchToExistingTabUserActions histograms were deprecated
+    and removed in 10/2016.
   </summary>
 </histogram>