[Extensions] Extension Port Ids and Initialization 2.0

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 8ddf95ea8c71cfbf083369e042291f04ff0d513d..18a5480865f23808ad90d94b055c1b4fcb3cba8c 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -17206,6 +17206,15 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Extensions.Messaging.SetPortIdTime" units="ms">
+  <owner>rdevlin.cronin@chromium.org</owner>
+  <summary>
+    The amount of time for the renderer to inform the browser process of a new
+    port being created with a certain id. This replaces the flow for
+    Extensions.Messaging.GetPortId[A]SyncTime.
+  </summary>
+</histogram>
+
 <histogram name="Extensions.NetworkDelay" units="ms">
   <owner>battre@chromium.org</owner>
   <summary>Time that network requests were blocked due to extensions.</summary>
@@ -108592,12 +108601,25 @@ value.
 
 <histogram_suffixes name="ExtensionMessagingPortCreationTime" separator=".">
   <suffix name="Normal"
-      label="Created during any time other than the 'unload' or
-             'beforeunload' handlers."/>
+      label="Created during any time other than the 'unload' or 'beforeunload'
+             handlers.">
+    <obsolete>
+      Deprecated and removed from code as of 05/2015.
+    </obsolete>
+  </suffix>
   <suffix name="InBeforeUnload"
-      label="Created during an event handler for the 'beforeunload' event."/>
+      label="Created during an event handler for the 'beforeunload' event.">
+    <obsolete>
+      Deprecated and removed from code as of 05/2015.
+    </obsolete>
+  </suffix>
   <suffix name="InUnload"
-      label="Created during an event handler for the 'unload' event."/>
+      label="Created during an event handler for the 'unload' event.">
+    <obsolete>
+      Deprecated and removed from code as of 05/2015.
+    </obsolete>
+  </suffix>
+  <suffix name="Total" label="The total number of ports created."/>
   <affected-histogram name="Extensions.Messaging.ExtensionPortsCreated"/>
 </histogram_suffixes>
 
@@ -108607,6 +108629,7 @@ value.
   <suffix name="Tab" label="A port opened to a tab context."/>
   <affected-histogram name="Extensions.Messaging.GetPortIdAsyncTime"/>
   <affected-histogram name="Extensions.Messaging.GetPortIdSyncTime"/>
+  <affected-histogram name="Extensions.Messaging.SetPortIdTime"/>
 </histogram_suffixes>
 
 <histogram_suffixes name="ExtensionsDatabaseOpen" separator=".">