[Autofill] Add UMA timing metrics for requestAutocomplete dialog.

chrome/browser/autofill/autofill_metrics.cc

 // 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.
 
 #include "chrome/browser/autofill/autofill_metrics.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/time.h"
 #include "chrome/browser/autofill/autofill_type.h"
@@ skipping 250 matching lines @@
                             NUM_INFO_BAR_METRICS);
 }
 
 void AutofillMetrics::LogAutocheckoutInfoBarMetric(InfoBarMetric metric) const {
   DCHECK(metric < NUM_INFO_BAR_METRICS);
 
   UMA_HISTOGRAM_ENUMERATION("Autofill.AutocheckoutInfoBar", metric,
                             NUM_INFO_BAR_METRICS);
 }
 
+void AutofillMetrics::LogRequestAutocompleteUiDuration(
+    const base::TimeDelta& duration,
+    DialogDismissalAction dismissal_action) const {
+  UMA_HISTOGRAM_LONG_TIMES("RequestAutocomplete.UiDuration", duration);

[Albert Bodenhamer, 2013/01/31 16:31:06]

What's the best way to split this out by invocation type?  autocheckout will run
through this flow as well, but we'll want to track that separately.

[Ilya Sherman, 2013/02/01 09:55:17]

Done.

+
+  switch (dismissal_action) {
+    case DIALOG_ACCEPTED:
+      UMA_HISTOGRAM_LONG_TIMES("RequestAutocomplete.UiDuration.Submit",
+                               duration);
+      break;
+
+    case DIALOG_CANCELED:
+      UMA_HISTOGRAM_LONG_TIMES("RequestAutocomplete.UiDuration.Cancel",
+                               duration);
+      break;
+  }
+}
+
+
 void AutofillMetrics::LogDeveloperEngagementMetric(
     DeveloperEngagementMetric metric) const {
   DCHECK(metric < NUM_DEVELOPER_ENGAGEMENT_METRICS);
 
   UMA_HISTOGRAM_ENUMERATION("Autofill.DeveloperEngagement", metric,
                             NUM_DEVELOPER_ENGAGEMENT_METRICS);
 }
 
 void AutofillMetrics::LogHeuristicTypePrediction(
     FieldTypeQualityMetric metric,
@@ skipping 103 matching lines @@
 
 void AutofillMetrics::LogServerExperimentIdForQuery(
     const std::string& experiment_id) const {
   LogServerExperimentId("Autofill.ServerExperimentId.Query", experiment_id);
 }
 
 void AutofillMetrics::LogServerExperimentIdForUpload(
     const std::string& experiment_id) const {
   LogServerExperimentId("Autofill.ServerExperimentId.Upload", experiment_id);
 }