Improve user actions logging for closing the Tab.

Add OverscrollActionCloseTab user action.
Mark MobileTabClosed as not_user_triggered.

This will help to better distinguish different ways
of closing the tab.

Bug: 1046223
Change-Id: I58ce36f51bb39f4d52e75633c2c6840ce4283b2e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2032405
Auto-Submit: Eugene But <eugenebut@chromium.org>
Commit-Queue: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738693}

ios/chrome/browser/ui/content_suggestions/content_suggestions_coordinator.mm

@@ -5,6 +5,8 @@
 #import "ios/chrome/browser/ui/content_suggestions/content_suggestions_coordinator.h"
 
 #include "base/mac/foundation_util.h"
+#include "base/metrics/user_metrics.h"
+#include "base/metrics/user_metrics_action.h"
 #include "components/ntp_snippets/content_suggestions_service.h"
 #include "components/ntp_snippets/pref_names.h"
 #include "components/ntp_snippets/remote/remote_suggestions_scheduler.h"
@@ -224,6 +226,7 @@
     } break;
     case OverscrollAction::CLOSE_TAB: {
       [_dispatcher closeCurrentTab];
+      base::RecordAction(base::UserMetricsAction("OverscrollActionCloseTab"));
     } break;
     case OverscrollAction::REFRESH:
       [self reload];

tools/metrics/actions/actions.xml

@@ -13650,7 +13650,7 @@ should be able to be added at any place in this file.
   <description>Please enter the description of this user action.</description>
 </action>
 
-<action name="MobileTabClosed">
+<action name="MobileTabClosed" not_user_triggered="true">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>
 </action>
@@ -17094,6 +17094,14 @@ should be able to be added at any place in this file.
   </description>
 </action>
 
+<action name="OverscrollActionCloseTab">
+  <owner>eugenebut@chromium.org</owner>
+  <owner>kkhorimoto@chromium.org</owner>
+  <description>
+    Called when the user closes the tab using overscroll action.
+  </description>
+</action>
+
 <action name="PageDown">
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <description>Please enter the description of this user action.</description>