[M56] Add the missing callback to client for CheckResourceUrl

components/safe_browsing_db/v4_local_database_manager.h

Index: components/safe_browsing_db/v4_local_database_manager.h
diff --git a/components/safe_browsing_db/v4_local_database_manager.h b/components/safe_browsing_db/v4_local_database_manager.h
index c1e65141844d91a236eae8b2f520029a8cec4490..41598243228393f6d1c01ebca68e49983568ce5b 100644
--- a/components/safe_browsing_db/v4_local_database_manager.h
+++ b/components/safe_browsing_db/v4_local_database_manager.h
@@ -150,6 +150,10 @@ class V4LocalDatabaseManager : public SafeBrowsingDatabaseManager {
     // The metadata associated with the full hash of the severest match found
     // for that URL.
     ThreatMetadata url_metadata;
+
+    // The full hash that matched for a blacklisted resource URL. Used only for
+    // |CheckResourceUrl| case.
+    FullHash matching_full_hash;
   };
 
   typedef std::vector<std::unique_ptr<PendingCheck>> QueuedChecks;
@@ -186,11 +190,12 @@ class V4LocalDatabaseManager : public SafeBrowsingDatabaseManager {
       const std::unique_ptr<PendingCheck>& check,
       FullHashToStoreAndHashPrefixesMap* full_hash_to_store_and_hash_prefixes);
 
-  // Finds the most severe |SBThreatType| and the corresponding |metadata| from
-  // |full_hash_infos|.
+  // Finds the most severe |SBThreatType| and the corresponding |metadata|, and
+  // |matching_full_hash| from |full_hash_infos|.
   void GetSeverestThreatTypeAndMetadata(
       SBThreatType* result_threat_type,
       ThreatMetadata* metadata,
+      FullHash* matching_full_hash,
       const std::vector<FullHashInfo>& full_hash_infos);
 
   // Returns the SBThreatType for a given ListIdentifier.