Separate logging event for when a bookmark is launched from app menu.

Requested by Chronav logging initiative.

See attached bug for details.

Bug: 951906
Change-Id: Ia532b16cde546b3cbadc1c52cafc2503a452f9de
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1574601
Commit-Queue: Dana Fried <dfried@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652606}

chrome/browser/bookmarks/bookmark_stats.cc

@@ -37,8 +37,12 @@ bool IsBookmarkBarLocation(BookmarkLaunchLocation location) {
 
 void RecordBookmarkLaunch(const BookmarkNode* node,
                           BookmarkLaunchLocation location) {
-  if (IsBookmarkBarLocation(location))
+  if (IsBookmarkBarLocation(location)) {
     base::RecordAction(base::UserMetricsAction("ClickedBookmarkBarURLButton"));
+  } else if (location == BOOKMARK_LAUNCH_LOCATION_APP_MENU) {
+    base::RecordAction(
+        base::UserMetricsAction("WrenchMenu_Bookmarks_LaunchURL"));
+  }
 
   UMA_HISTOGRAM_ENUMERATION("Bookmarks.LaunchLocation", location,
                             BOOKMARK_LAUNCH_LOCATION_LIMIT);

tools/metrics/actions/actions.xml

@@ -21659,6 +21659,15 @@ 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="WrenchMenu_Bookmarks_LaunchURL">
+  <owner>dfried@chromium.org</owner>
+  <description>
+    The user opened a bookmark from the wrench/application/three-dot menu.
+    Distinguished from launching from e.g. the bookmarks bar or bookmark
+    manager.
+  </description>
+</action>
+
 <action name="WrenchMenu_OpenRecentTabFromDevice">
   <owner>jwd@chromium.org</owner>
   <description>