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 b58432248bb663f63c5decdeca1fa6413b0347d1..101ba924770164bee4ec7022dcaf8cd68eb42e94 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -37092,6 +37092,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="Omnibox.FocusToOpenTimeAnyPopupState" units="ms">
   <owner>mpearson@chromium.org</owner>
+  <obsolete>
+    Replaced with Omnibox.FocusToOpenTimeAnyPopupState2 in August, 2016.
+  </obsolete>
   <summary>
     The length of time between when a user focused on the omnibox and opened an
     omnibox match (which could be what they typed or a suggestion).  This is
@@ -37099,6 +37102,20 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Omnibox.FocusToOpenTimeAnyPopupState2" units="ms">
+  <owner>mpearson@chromium.org</owner>
+  <summary>
+    The length of time between when a user focused on the omnibox and opened an
+    omnibox match (which could be what they typed or a suggestion).  This is
+    recorded regardless of whether the omnibox dropdown (a.k.a. popup) is open.
+    It is not recorded if a match is opened without triggering a focus event,
+    e.g., when a user drags a URL to the omnibox to navigate.
+
+    To know how common this last condition is, compare the total count of this
+    histogram to the total number of omnibox events.

[rkaplow, 2016/08/11 22:13:22]

nit - you could call out "the total number of omnibox events" by histogram name
to make it a bit easier for the reader.

[Mark P, 2016/08/11 22:17:58]

Acknowledged.  Except it's a synthetic histogram, so I feel weird about calling
it out here.  Users should either look at the underlying logs omnibox_event
protos or search our dashboard.

+  </summary>
+</histogram>
+
 <histogram name="Omnibox.HardwareKeyboardModeEnabled" enum="BooleanEnabled">
   <owner>lpromero@chromium.org</owner>
   <summary>