[Start] Records Suggestions.Tile.Tapped on Start

Records Suggestions.Tile.Tapped when tapping on an MV tile in Start.

Bug: 1033257
Change-Id: I720f8a987c37e6fa1a11751652cd1efe0f235a9b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2590284Reviewed-by: Theresa  <twellington@chromium.org>
Commit-Queue: Xi Han <hanxi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#836736}

chrome/android/features/tab_ui/java/src/org/chromium/chrome/browser/tasks/MostVisitedListCoordinator.java

@@ -15,6 +15,7 @@ import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.suggestions.ImageFetcher;
 import org.chromium.chrome.browser.suggestions.SuggestionsConfig;
 import org.chromium.chrome.browser.suggestions.SuggestionsDependencyFactory;
+import org.chromium.chrome.browser.suggestions.SuggestionsMetrics;
 import org.chromium.chrome.browser.suggestions.SuggestionsUiDelegate;
 import org.chromium.chrome.browser.suggestions.SuggestionsUiDelegateImpl;
 import org.chromium.chrome.browser.suggestions.tile.SuggestionsTileView;
@@ -157,6 +158,7 @@ class MostVisitedListCoordinator implements TileGroup.Observer, TileGroup.TileSe
             ReturnToChromeExperimentsUtil.willHandleLoadUrlFromStartSurface(
                     mTile.getUrl().getSpec(), PageTransition.AUTO_BOOKMARK, null /*incognito*/,
                     mParentTabSupplier.get());
+            SuggestionsMetrics.recordTileTapped();
         }
 
         @Override