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 231196dbec0872174bc4f12ea8d1d481d8f6a10c..70c1e63ab18f65bc92a0d63f458e499e75af367c 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -294,52 +294,52 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 
 <histogram name="appcache.CheckResponseResult"
     enum="AppCacheCheckResponseResult">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>AppCache check response result code.</summary>
 </histogram>
 
 <histogram name="appcache.CompletionQueueTime" units="milliseconds">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>
     Time elapsed between a completion task being queued and run.
   </summary>
 </histogram>
 
 <histogram name="appcache.CompletionRunTime" units="milliseconds">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>
     The amount of time taken to run a completion task on the IO thread.
   </summary>
 </histogram>
 
 <histogram name="appcache.CorruptionDetected">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>
     Tracks the number of times corruption is detected in the sql database.
   </summary>
 </histogram>
 
 <histogram name="appcache.InitResult" enum="AppCacheInitResult">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>AppCache initialization result code.</summary>
 </histogram>
 
 <histogram name="appcache.JobStartDelay.AppCache" units="milliseconds">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>
     How long URLRequests to be retrieved from the appcache are delayed.
   </summary>
 </histogram>
 
 <histogram name="appcache.JobStartDelay.Error" units="milliseconds">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>
     How long URLRequests that result in a synthesized error are delayed.
   </summary>
 </histogram>
 
 <histogram name="appcache.JobStartDelay.Network" units="milliseconds">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>
     How long URLRequests to be retrieved over the network are delayed.
   </summary>
@@ -354,12 +354,12 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 
 <histogram name="appcache.MissingManifestDetectedAtCallsite"
     enum="AppCacheErrorSite">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>Identifies where a missing manifest was detected occured.</summary>
 </histogram>
 
 <histogram name="appcache.MissingManifestEntry" enum="BooleanSuccess">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>
     Logged on each occurrence of there being no record for the manifest file in
     the entries table.
@@ -367,7 +367,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="appcache.ReinitAttempt">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>
     Tracks the number of times the appcache reinit process occurs. The boolean
     value indicates whether it was a repeated attempt to reinitialize during a
@@ -383,19 +383,19 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="appcache.TaskQueueTime" units="milliseconds">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>
     Time elapsed between a background task being queued and run.
   </summary>
 </histogram>
 
 <histogram name="appcache.TaskRunTime" units="milliseconds">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>The amount of time taken to run a background task.</summary>
 </histogram>
 
 <histogram name="appcache.UpdateJobResult" enum="AppCacheUpdateJobResult">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>AppCache update job result code.</summary>
 </histogram>
 
@@ -4160,7 +4160,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="DiskCache.3.FilesAge" units="hours">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>michaeln@chromium.org</owner>
   <summary>The age of the cache's files (wall time). AppCache.</summary>
 </histogram>
 
@@ -5005,6 +5005,49 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="DOMStorage.clear" units="milliseconds">
+  <owner>michaeln@chromium.org</owner>
+  <summary>
+    Duration to execute localStorage.clear() or sessionStorage.clear().
+  </summary>
+</histogram>
+
+<histogram name="DOMStorage.getItem" units="milliseconds">
+  <owner>michaeln@chromium.org</owner>
+  <summary>
+    Duration to execute localStorage.getItem() or sessionStorage.getItem().
+  </summary>
+</histogram>
+
+<histogram name="DOMStorage.key" units="milliseconds">
+  <owner>michaeln@chromium.org</owner>
+  <summary>
+    Duration to execute localStorage.key() or sessionStorage.key().
+  </summary>
+</histogram>
+
+<histogram name="DOMStorage.length" units="milliseconds">
+  <owner>michaeln@chromium.org</owner>
+  <summary>
+    Duration to execute localStorage.length() or sessionStorage.length().
+  </summary>
+</histogram>
+
+<histogram name="DOMStorage.removeItem" units="milliseconds">
+  <owner>michaeln@chromium.org</owner>
+  <summary>
+    Duration to execute localStorage.removeItem() or
+    sessionStorage.removeItem().
+  </summary>
+</histogram>
+
+<histogram name="DOMStorage.setItem" units="milliseconds">
+  <owner>michaeln@chromium.org</owner>
+  <summary>
+    Duration to execute localStorage.setItem() or sessionStorage.setItem().
+  </summary>
+</histogram>
+
 <histogram name="Download.AcceptRangesBytes.KBytes" units="KB">
   <owner>asanka@chromium.org</owner>
   <summary>The length of downloads for serves that accept byte ranges.</summary>
@@ -28367,6 +28410,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   <summary>How did the user interact with the SessionCrashed Bubble?</summary>
 </histogram>
 
+<histogram name="SessionStorageDatabase.Open" enum="SessionStorageDatabaseOpen">
+  <owner>michaeln@chromium.org</owner>
+  <summary>
+    The result (success, failure, or database recreated) of trying to open the
+    LevelDB database for sessionStorage.
+  </summary>
+</histogram>
+
 <histogram name="Settings.DefaultSearchProvider" enum="OmniboxSearchEngine">
   <obsolete>
     Deprecated in Chrome 30.  Use Search.DefaultSearchProviderType instead.
@@ -48854,6 +48905,14 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="3" label="Specified URLs"/>
 </enum>
 
+<enum name="SessionStorageDatabaseOpen" type="int">
+  <int value="0" label="Succesfully opened the database."/>
+  <int value="1"
+      label="Failed to open the existing db, deleted it, and created a new
+             empty db."/>
+  <int value="2" label="Failed to open the database and failed to recover."/>

[Ilya Sherman, 2014/08/19 01:03:14]

nit: I recommend using briefer labels, since these are going to be rendered as
the left column of a table.  You can use the format

<int value="N" label="Short">Longer description that's shown as a tooltip</int>

if you would like to include longer descriptions as well as brief ones.

[michaeln, 2014/08/19 19:46:33]

Done.

+</enum>
+
 <enum name="ShelfAlignmentValue" type="int">
   <summary>
     The alignment of the shelf area (see ash/launcher/launcher_view.cc).