SafeBrowsing: DatabaseManager owns the V4GetHashProtocolManager

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 4924cacb32503fd883bdb906f0c620691e6205af..0bebc37d4f0d82b34f70ac25de72385b5d8339e0 100644
--- a/components/safe_browsing_db/database_manager.h
+++ b/components/safe_browsing_db/database_manager.h
@@ -20,8 +20,15 @@
 #include "content/public/common/resource_type.h"
 #include "url/gurl.h"
 
+namespace net {
+class URLRequestContextGetter;
+}  // namespace net
+
 namespace safe_browsing {
 
+struct V4GetHashProtocolConfig;
+class V4GetHashProtocolManager;
+
 // Base class to either the locally-managed or a remotely-managed database.
 class SafeBrowsingDatabaseManager
     : public base::RefCountedThreadSafe<SafeBrowsingDatabaseManager> {
@@ -146,9 +153,19 @@ class SafeBrowsingDatabaseManager
   virtual void StopOnIOThread(bool shutdown) = 0;
 
  protected:
-  virtual ~SafeBrowsingDatabaseManager() {}
+  // Use this constructor for testing only.
+  SafeBrowsingDatabaseManager();
+
+  // Constructs the database manager.
+  SafeBrowsingDatabaseManager(
+      net::URLRequestContextGetter* request_context_getter,
+      const V4GetHashProtocolConfig& config);
+
+  virtual ~SafeBrowsingDatabaseManager();
 
   friend class base::RefCountedThreadSafe<SafeBrowsingDatabaseManager>;
+
+  std::unique_ptr<V4GetHashProtocolManager> v4_get_hash_protocol_manager_;
 };  // class SafeBrowsingDatabaseManager
 
 }  // namespace safe_browsing