Each DatabaseManager gets to decide which stores to track

components/safe_browsing_db/database_manager.h

Index: components/safe_browsing_db/database_manager.h
diff --git a/components/safe_browsing_db/database_manager.h b/components/safe_browsing_db/database_manager.h
index fbbd1e648639c8324fbe302e38848c394af73a44..197d9bdf460ebefb96296076d74165c36c5cd513 100644
--- a/components/safe_browsing_db/database_manager.h
+++ b/components/safe_browsing_db/database_manager.h
@@ -8,10 +8,9 @@
 #ifndef COMPONENTS_SAFE_BROWSING_DB_DATABASE_MANAGER_H_
 #define COMPONENTS_SAFE_BROWSING_DB_DATABASE_MANAGER_H_
 
-#include <deque>
-#include <map>
 #include <set>
 #include <string>
+#include <unordered_set>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
@@ -28,6 +27,7 @@ class URLRequestContextGetter;
 
 namespace safe_browsing {
 
+struct UpdateListIdentifier;
 struct V4ProtocolConfig;
 class V4GetHashProtocolManager;
 
@@ -221,6 +221,10 @@ class SafeBrowsingDatabaseManager
 
   typedef std::set<SafeBrowsingApiCheck*> ApiCheckSet;
 
+  // Returns the lists that this DatabaseManager should get full hashes for.
+  virtual std::unordered_set<UpdateListIdentifier>
+  GetStoresForFullHashRequests();
+
   // Called on the IO thread when the SafeBrowsingProtocolManager has received
   // the full hash and api results for prefixes of the |url| argument in
   // CheckApiBlacklistUrl.