PVer4: Re-use the PVer3 implementation to get full hashes

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 7fa07fbee4ca5dc95e1ca20b5274d8fede38b3e5..0b4b7fe2b460a67cc92db209fcc6e11ab16bd4c1 100644
--- a/components/safe_browsing_db/v4_local_database_manager.h
+++ b/components/safe_browsing_db/v4_local_database_manager.h
@@ -10,17 +10,20 @@
 
 #include <memory>
 
+#include "base/sequenced_task_runner.h"
 #include "components/safe_browsing_db/database_manager.h"
 #include "components/safe_browsing_db/hit_report.h"
 #include "components/safe_browsing_db/v4_database.h"
 #include "components/safe_browsing_db/v4_protocol_manager_util.h"
-#include "components/safe_browsing_db/v4_update_protocol_manager.h"
 #include "url/gurl.h"
 
 using content::ResourceType;
 
 namespace safe_browsing {
 
+class V4GetHashProtocolManager;
+class V4UpdateProtocolManager;
+
 // Manages the local, on-disk database of updates downloaded from the
 // SafeBrowsing service and interfaces with the protocol manager.
 class V4LocalDatabaseManager : public SafeBrowsingDatabaseManager {
@@ -66,11 +69,20 @@ class V4LocalDatabaseManager : public SafeBrowsingDatabaseManager {
 
   ~V4LocalDatabaseManager() override;
 
+  // Called back by V4GetHashProtocolManager when the full hashes response has
+  // been received from the server.
+  void HandleGetHashes(const std::vector<SBFullHashResult>& full_hash_results,
+                       const base::Time& negative_cache_expire);
+
   // The callback called each time the protocol manager downloads updates
   // successfully.
   void UpdateRequestCompleted(
       std::unique_ptr<ParsedServerResponse> parsed_server_response);
 
+  void SetupGetHashProtocolManager(
+      net::URLRequestContextGetter* request_context_getter,
+      const V4ProtocolConfig& config);
+
   void SetupUpdateProtocolManager(
       net::URLRequestContextGetter* request_context_getter,
       const V4ProtocolConfig& config);
@@ -94,6 +106,10 @@ class V4LocalDatabaseManager : public SafeBrowsingDatabaseManager {
   // It should come through the database, from the various V4Stores.
   base::hash_map<UpdateListIdentifier, std::string> current_list_states_;
 
+  // The protocol manager that downloads the full hashes for given hash
+  // prefixes.
+  std::unique_ptr<V4GetHashProtocolManager> v4_get_hash_protocol_manager_;
+
   // The protocol manager that downloads the hash prefix updates.
   std::unique_ptr<V4UpdateProtocolManager> v4_update_protocol_manager_;