Cleaning up url_index_private_data and in_memory_url_index_types.

components/omnibox/browser/scored_history_match.cc

Index: components/omnibox/browser/scored_history_match.cc
diff --git a/components/omnibox/browser/scored_history_match.cc b/components/omnibox/browser/scored_history_match.cc
index 5dddb3f5102493781921eab8a52b83e73a7e1710..f0424978552e3b2c6cccdb3495223a50197606c4 100644
--- a/components/omnibox/browser/scored_history_match.cc
+++ b/components/omnibox/browser/scored_history_match.cc
@@ -320,9 +320,12 @@ ScoredHistoryMatch::ScoredHistoryMatch(
 
 ScoredHistoryMatch::ScoredHistoryMatch(const ScoredHistoryMatch& other) =
     default;
-
-ScoredHistoryMatch::~ScoredHistoryMatch() {
-}
+ScoredHistoryMatch::ScoredHistoryMatch(ScoredHistoryMatch&& other) = default;
+ScoredHistoryMatch& ScoredHistoryMatch::operator=(
+    const ScoredHistoryMatch& other) = default;
+ScoredHistoryMatch& ScoredHistoryMatch::operator=(ScoredHistoryMatch&& other) =
+    default;
+ScoredHistoryMatch::~ScoredHistoryMatch() = default;
 
 // Comparison function for sorting ScoredMatches by their scores with
 // intelligent tie-breaking.