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 14d41d682945abe6b189d1338bb528443b3315c4..591a3d091770083c0ebfee85d6ca3c30b641167c 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -996,6 +996,18 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="Ash.WindowSelector.TimeBetweenActiveWindowChanges"
+    units="seconds">
+  <owner>bruthig@chromium.org</owner>
+  <owner>tdanderson@chromium.org</owner>
+  <summary>
+    The amount of time between uses of Ash overview mode in which the user has
+    selected a window that was not previously active. Note this differs from the
+    TimeBetweenUse histogram, which simply measures time between entering
+    overview mode (regardless of what the user did while in overview).

[bruthig, 2015/05/14 22:54:52]

I would recommend you update the description for the
Ash.WindowSelector.TimeBetweenUse to be a little more accurate so a distinction
is clear without having to be explain it here.

As for a description for "Ash.WindowSelector.TimeBetweenActiveWindowChanges" how
about this?
"The amount of time between overview mode ending's caused by the user activating
a window which was not active when overview mode started."

[tdanderson, 2015/05/14 23:21:39]

Done.

+  </summary>
+</histogram>
+
 <histogram name="Ash.WindowSelector.TimeBetweenUse" units="milliseconds">
   <owner>flackr@chromium.org</owner>
   <owner>kuscher@google.com</owner>
@@ -4484,16 +4496,6 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
-<histogram name="DataReductionProxy.SecureProxyCheck.Latency"
-    units="milliseconds">
-  <owner>jeremyim@chromium.org</owner>
-  <owner>bengr@chromium.org</owner>
-  <summary>
-    Time from when the Data Reduction Proxy secure proxy check starts until it
-    completes.
-  </summary>
-</histogram>
-
 <histogram name="DataReductionProxy.ResponseProxyServerStatus"
     enum="DataReductionProxyResponseProxyServerStatus">
   <owner>sclittle@chromium.org</owner>
@@ -4504,6 +4506,16 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="DataReductionProxy.SecureProxyCheck.Latency"
+    units="milliseconds">
+  <owner>jeremyim@chromium.org</owner>
+  <owner>bengr@chromium.org</owner>
+  <summary>
+    Time from when the Data Reduction Proxy secure proxy check starts until it
+    completes.
+  </summary>
+</histogram>
+
 <histogram name="DataReductionProxy.SettingsConversion"
     enum="DataReductionProxySettingsConversion">
   <obsolete>