Replacing Indexed DB Chromium IPC with Mojo

third_party/WebKit/Source/modules/indexeddb/IDBOpenDBRequest.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:
  *
  * 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
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef IDBOpenDBRequest_h
 #define IDBOpenDBRequest_h
 
+#include "Source/modules/indexeddb/indexed_db.mojom-blink.h"
 #include "modules/ModulesExport.h"
 #include "modules/indexeddb/IDBRequest.h"
-#include "public/platform/modules/indexeddb/WebIDBDatabase.h"
-#include <memory>
+#include "mojo/public/cpp/bindings/binding.h"
 
 namespace blink {
 
-class IDBDatabaseCallbacks;
+class IDBDatabase;
 
-class MODULES_EXPORT IDBOpenDBRequest final : public IDBRequest {
+// A request to either open or delete a database.
+//
+// Note: This is an Oilpan managed object with an interface passed to Mojo.
+// TODO(cmumford): Update this note when the request is removed from IDBDatabaseObserverImpl.
+class MODULES_EXPORT IDBOpenDBRequest final : public IDBRequest, WTF_NON_EXPORTED_BASE(public indexed_db::mojom::blink::OpenRequestObserver)
+{
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static IDBOpenDBRequest* create(ScriptState*, IDBDatabaseCallbacks*, int64_t transactionId, int64_t version);
+    static IDBOpenDBRequest* create(ScriptState*, int64_t transactionId, int64_t version, indexed_db::mojom::blink::OpenRequestObserverRequest);
     ~IDBOpenDBRequest() override;
     DECLARE_VIRTUAL_TRACE();
 
     using IDBRequest::onSuccess;
 
-    void onBlocked(int64_t existingVersion) override;
-    void onUpgradeNeeded(int64_t oldVersion, std::unique_ptr<WebIDBDatabase>, const IDBDatabaseMetadata&, WebIDBDataLoss, String dataLossMessage) override;
-    void onSuccess(std::unique_ptr<WebIDBDatabase>, const IDBDatabaseMetadata&) override;
+    void onSuccess(std::unique_ptr<IDBDatabaseProxy>, const IDBDatabaseMetadata&) override;
     void onSuccess(int64_t oldVersion) override;
 
     // EventTarget
     const AtomicString& interfaceName() const override;
 
+    // indexed_db::mojom::blink::OpenRequestObserver:
+    void OnBlocked(int64_t oldVersion) override;
+    void OnUpgradeNeeded(int64_t oldVersion, indexed_db::mojom::blink::DatabasePtr, indexed_db::mojom::blink::DatabaseMetadataPtr, indexed_db::mojom::blink::DataLossInfoPtr) override;
+
+    IDBDatabase* getDatabase() const;
+
+    void onOpenResult(indexed_db::mojom::blink::OpenResultPtr);
+
     DEFINE_ATTRIBUTE_EVENT_LISTENER(blocked);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(upgradeneeded);
 
 protected:
     bool shouldEnqueueEvent() const override;
 
     // EventTarget
     DispatchEventResult dispatchEventInternal(Event*) override;
 
 private:
-    IDBOpenDBRequest(ScriptState*, IDBDatabaseCallbacks*, int64_t transactionId, int64_t version);
+    IDBOpenDBRequest(ScriptState*, int64_t transactionId, int64_t version, indexed_db::mojom::blink::OpenRequestObserverRequest);
 
-    Member<IDBDatabaseCallbacks> m_databaseCallbacks;
+    void onBlocked(int64_t existingVersion);
+    void onUpgradeNeeded(int64_t oldVersion, std::unique_ptr<IDBDatabaseProxy>, const IDBDatabaseMetadata&, WebIDBDataLoss, String dataLossMessage);
+
     const int64_t m_transactionId;
     int64_t m_version;
+    mojo::Binding<indexed_db::mojom::blink::OpenRequestObserver> m_binding;
 };
 
 } // namespace blink
 
 #endif // IDBOpenDBRequest_h