📰 Report suggestions surface opened on every home sheet impression

Bug: 762549
Change-Id: Iebd5c5dc7d3c3d3d46c4acb8bb03142413e82515
Reviewed-on: https://chromium-review.googlesource.com/663341Reviewed-by: Bernhard Bauer <bauerb@chromium.org>
Reviewed-by: Jan Krcal <jkrcal@chromium.org>
Reviewed-by: vitaliii <vitaliii@chromium.org>
Commit-Queue: Nicolas Dossou-Gbété <dgn@chromium.org>
Cr-Commit-Position: refs/heads/master@{#501322}

chrome/android/java/src/org/chromium/chrome/browser/suggestions/SuggestionsBottomSheetContent.java

@@ -128,7 +128,6 @@ public class SuggestionsBottomSheetContent implements BottomSheet.BottomSheetCon
             public void onContentShown(boolean isFirstShown) {
                 if (isFirstShown) {
                     adapter.refreshSuggestions();
-                    mSuggestionsUiDelegate.getEventReporter().onSurfaceOpened();
 
                     maybeUpdateContextualSuggestions();
 
@@ -140,6 +139,12 @@ public class SuggestionsBottomSheetContent implements BottomSheet.BottomSheetCon
                     mRecyclerView.getScrollEventReporter().reset();
                 }
 
+                // TODO(dgn): Temporary workaround to trigger an event in the backend when the
+                // sheet is opened following inactivity. See https://crbug.com/760974. Should be
+                // moved back to the "new opening of the sheet" path once we are able to trigger it
+                // in that case.
+                mSuggestionsUiDelegate.getEventReporter().onSurfaceOpened();
+
                 SuggestionsMetrics.recordSurfaceVisible();
             }