Port messages sent by WebIDBFactoryImpl to Mojo.

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

 /*
  * Copyright (C) 2010 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 71 matching lines @@
 
     // Defined in the IDL
     enum ReadyState {
         PENDING = 1,
         DONE = 2,
         EarlyDeath = 3
     };
 
     const String& readyState() const;
 
+    // Returns a new WebIDBCallbacks for this request. Must only be called once.
+    std::unique_ptr<WebIDBCallbacks> createWebCallbacks();
+    void webCallbacksDestroyed();
+
     DEFINE_ATTRIBUTE_EVENT_LISTENER(success);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
 
     void setCursorDetails(IndexedDB::CursorType, WebIDBCursorDirection);
     void setPendingCursor(IDBCursor*);
     void abort();
 
     virtual void onError(DOMException*);
     virtual void onSuccess(const Vector<String>&);
     virtual void onSuccess(std::unique_ptr<WebIDBCursor>, IDBKey*, IDBKey* primaryKey, PassRefPtr<IDBValue>);
     virtual void onSuccess(IDBKey*);
     virtual void onSuccess(PassRefPtr<IDBValue>);
     virtual void onSuccess(const Vector<RefPtr<IDBValue>>&);
     virtual void onSuccess(int64_t);
     virtual void onSuccess();
     virtual void onSuccess(IDBKey*, IDBKey* primaryKey, PassRefPtr<IDBValue>);
 
     // Only IDBOpenDBRequest instances should receive these:
     virtual void onBlocked(int64_t oldVersion) { ASSERT_NOT_REACHED(); }
     virtual void onUpgradeNeeded(int64_t oldVersion, std::unique_ptr<WebIDBDatabase>, const IDBDatabaseMetadata&, WebIDBDataLoss, String dataLossMessage) { ASSERT_NOT_REACHED(); }
     virtual void onSuccess(std::unique_ptr<WebIDBDatabase>, const IDBDatabaseMetadata&) { ASSERT_NOT_REACHED(); }
 
     // ScriptWrappable
     bool hasPendingActivity() const final;
 
     // ActiveDOMObject
-    void stop() final;
+    void stop() override;
 
     // EventTarget
     const AtomicString& interfaceName() const override;
     ExecutionContext* getExecutionContext() const final;
     void uncaughtExceptionInEventHandler() final;
 
     // Called by a version change transaction that has finished to set this
     // request back from DONE (following "upgradeneeded") back to PENDING (for
     // the upcoming "success" or "error").
     void transactionDidFinishAndDispatch();
@@ skipping 35 matching lines @@
     // When a cursor is continued/advanced, m_result is cleared and m_pendingCursor holds it.
     Member<IDBCursor> m_pendingCursor;
     // New state is not applied to the cursor object until the event is dispatched.
     Member<IDBKey> m_cursorKey;
     Member<IDBKey> m_cursorPrimaryKey;
     RefPtr<IDBValue> m_cursorValue;
 
     bool m_didFireUpgradeNeededEvent = false;
     bool m_preventPropagation = false;
     bool m_resultDirty = true;
+
+    // Pointer back to the WebIDBCallbacks that holds a persistent reference to
+    // this object.
+    WebIDBCallbacks* m_webCallbacks = nullptr;
 };
 
 } // namespace blink
 
 #endif // IDBRequest_h