[DevTools] migrate Database, IndexedDB and CacheStorage to new style

third_party/WebKit/Source/modules/indexeddb/InspectorIndexedDBAgent.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 35 matching lines @@
     : public InspectorBaseAgent<protocol::IndexedDB::Metainfo> {
  public:
   InspectorIndexedDBAgent(InspectedFrames*, v8_inspector::V8InspectorSession*);
   ~InspectorIndexedDBAgent() override;
   DECLARE_VIRTUAL_TRACE();
 
   void restore() override;
   void didCommitLoadForLocalFrame(LocalFrame*) override;
 
   // Called from the front-end.
-  void enable(ErrorString*) override;
-  void disable(ErrorString*) override;
+  Response enable() override;
+  Response disable() override;
   void requestDatabaseNames(
       const String& securityOrigin,
       std::unique_ptr<RequestDatabaseNamesCallback>) override;
   void requestDatabase(const String& securityOrigin,
                        const String& databaseName,
                        std::unique_ptr<RequestDatabaseCallback>) override;
   void requestData(const String& securityOrigin,
                    const String& databaseName,
                    const String& objectStoreName,
                    const String& indexName,
                    int skipCount,
                    int pageSize,
-                   const Maybe<protocol::IndexedDB::KeyRange>&,
+                   Maybe<protocol::IndexedDB::KeyRange>,
                    std::unique_ptr<RequestDataCallback>) override;
   void clearObjectStore(const String& securityOrigin,
                         const String& databaseName,
                         const String& objectStoreName,
                         std::unique_ptr<ClearObjectStoreCallback>) override;
 
  private:
   Member<InspectedFrames> m_inspectedFrames;
   v8_inspector::V8InspectorSession* m_v8Session;
 };
 
 }  // namespace blink
 
 #endif  // !defined(InspectorIndexedDBAgent_h)