Make NumSuggestionsChanged metric consistent between

histograms.xml and the code in TabSuggestionsOrchestrator

Bug: 1043425
Change-Id: Ic3f65e303ffcdbe1a755bca664e976f9ca54117c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2040675Reviewed-by: Yusuf Ozuysal <yusufo@chromium.org>
Commit-Queue: David Maunder <davidjm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#739419}

chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/tab_management/suggestions/TabSuggestionsOrchestrator.java

@@ -176,7 +176,8 @@ public class TabSuggestionsOrchestrator implements TabSuggestions, Destroyable {
         }
         int numChanged = tabSuggestionFeedback.tabSuggestion.getTabsInfo().size()
                 - numSelectFromSuggestion + numSelectOutsideSuggestion;
+        // This was previously TabsSuggestions.Close.NumSuggestionsChanged
         RecordHistogram.recordCount100Histogram(
-                "TabsSuggestions.Close.NumSuggestionsChanged", numChanged);
+                "Tabs.Suggestions.Close.NumSuggestionsChanged", numChanged);
     }
 }