Cleanup FileBrowser.Create.* UMA events

chrome/browser/resources/file_manager/js/metrics.js

 // Copyright (c) 2011 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.
 
 /**
  * @fileoverview Utility methods for accessing chrome.experimental.metrics API.
  *
  * To be included as a first script in main.html
  */
 
@@ skipping 18 matching lines @@
     var elapsed = Date.now() - metrics.intervals[name];
     console.log(name + ': ' + elapsed + 'ms');
     chrome.experimental.metrics.recordTime(metrics.convertName_(name), elapsed);
   } else {
     console.error('Unknown interval: ' + name);
   }
 };
 
 metrics.recordAction = function(name) {
   chrome.experimental.metrics.recordUserAction(metrics.convertName_(name));
-};
+};
+
+metrics.reportCount = function(name, value) {
+  chrome.experimental.metrics.
+      recordMediumCount(metrics.convertName_(name), value);
+};
+
+metrics.recordEnum = function(name, value, validValues) {
+  var index = validValues.indexOf(value);
+
+  // Collect invalid values in the extra bucket at the end.
+  if (index < 0) index = validValues.length;
+
+  chrome.experimental.metrics.recordValue({
+      'metricName': metrics.convertName_(name),
+      'type': 'histogram-linear',
+      'min': 0,
+      'max': validValues.length,
+      'buckets': validValues.length + 1
+    },
+    index);
+};