UMA Histograms for Register Promos

chrome/browser/resources/print_preview/metrics.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('print_preview', function() {
   'use strict';
 
   /**
    * Object used to measure usage statistics.
    * @constructor
@@ skipping 28 matching lines @@
     // Used when the Google Cloud Print promotion (shown in the destination
     // search widget) is shown to the user.
     CLOUDPRINT_PROMO_SHOWN: 3,
     // Used when the user chooses to sign-in to their Google account.
     SIGNIN_TRIGGERED: 4,
     // Used when a user selects the privet printer in a pair of duplicate
     // privet and cloud printers.
     PRIVET_DUPLICATE_SELECTED: 5,
     // Used when a user selects the cloud printer in a pair of duplicate
     // privet and cloud printers.
-    CLOUD_DUPLICATE_SELECTED: 6
+    CLOUD_DUPLICATE_SELECTED: 6,
+    // Used when a user sees a register promo for a cloud print printer.
+    REGISTER_PROMO_SHOWN: 7,
+    // Used when a user selects a register promo for a cloud print printer.
+    REGISTER_PROMO_SELECTED: 8
   };
 
   /**
    * Enumeration of buckets that a user can enter while using the Google Cloud
    * Print promotion.
    * @enum {number}
    */
   Metrics.GcpPromoBucket = {
     // Used when the Google Cloud Print pomotion (shown above the pdf preview
     // plugin) is shown to the user.
@@ skipping 32 matching lines @@
       chrome.send(Metrics.NATIVE_FUNCTION_NAME_,
                   [Metrics.BucketGroup.GCP_PROMO, bucket]);
     }
   };
 
   // Export
   return {
     Metrics: Metrics
   };
 });