Index: ios/shared/chrome/browser/tabs/web_state_list_metrics_observer.mm |
diff --git a/ios/shared/chrome/browser/tabs/web_state_list_metrics_observer.mm b/ios/shared/chrome/browser/tabs/web_state_list_metrics_observer.mm |
new file mode 100644 |
index 0000000000000000000000000000000000000000..fd223b4394c0f3641be6cb9ee6b341b055eefa92 |
--- /dev/null |
+++ b/ios/shared/chrome/browser/tabs/web_state_list_metrics_observer.mm |
@@ -0,0 +1,45 @@ |
+// Copyright 2017 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. |
+ |
+#import "ios/shared/chrome/browser/tabs/web_state_list_metrics_observer.h" |
+ |
+#include "base/metrics/user_metrics.h" |
+#include "base/metrics/user_metrics_action.h" |
+ |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
+WebStateListMetricsObserver::WebStateListMetricsObserver() = default; |
+ |
+WebStateListMetricsObserver::~WebStateListMetricsObserver() = default; |
+ |
+void WebStateListMetricsObserver::WebStateInsertedAt( |
+ WebStateList* web_state_list, |
+ web::WebState* web_state, |
+ int index) { |
+ base::RecordAction(base::UserMetricsAction("MobileNewTabOpened")); |
+} |
+ |
+void WebStateListMetricsObserver::WebStateMoved(WebStateList* web_state_list, |
+ web::WebState* web_state, |
+ int from_index, |
+ int to_index) {} |
+ |
+void WebStateListMetricsObserver::WebStateReplacedAt( |
+ WebStateList* web_state_list, |
+ web::WebState* old_web_state, |
+ web::WebState* new_web_state, |
+ int index) { |
+ // Record a tab clobber, since swapping tabs bypasses the Tab code that would |
+ // normally log clobbers. |
+ base::RecordAction(base::UserMetricsAction("MobileTabClobbered")); |
+} |
+ |
+void WebStateListMetricsObserver::WebStateDetachedAt( |
+ WebStateList* web_state_list, |
+ web::WebState* web_state, |
+ int index) { |
+ base::RecordAction(base::UserMetricsAction("MobileTabClosed")); |
+} |