Add the backchannel for Blobs to be received into Blink from the database backend.

Source/modules/indexeddb/IDBCursor.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 18 matching lines @@
 #include "bindings/v8/ScriptValue.h"
 #include "bindings/v8/ScriptWrappable.h"
 #include "modules/indexeddb/IDBKey.h"
 #include "modules/indexeddb/IDBRequest.h"
 #include "modules/indexeddb/IndexedDB.h"
 #include "public/platform/WebIDBCursor.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 
+namespace blink {
+
+class WebBlobInfo;
+
+} // namespace blink
+
 namespace WebCore {
 
 class ExceptionState;
 class IDBAny;
 class IDBTransaction;
 class ExecutionContext;
 class SharedBuffer;
 
 class IDBCursor : public ScriptWrappable, public WTF::RefCountedBase {
 public:
@@ skipping 22 matching lines @@
     PassRefPtr<IDBRequest> deleteFunction(ExecutionContext*, ExceptionState&);
 
     bool isKeyDirty() const { return m_keyDirty; }
     bool isPrimaryKeyDirty() const { return m_primaryKeyDirty; }
     bool isValueDirty() const { return m_valueDirty; }
 
     void continueFunction(PassRefPtr<IDBKey>, PassRefPtr<IDBKey> primaryKey, ExceptionState&);
     void postSuccessHandlerCallback();
     bool isDeleted() const;
     void close();
-    void setValueReady(PassRefPtr<IDBKey>, PassRefPtr<IDBKey> primaryKey, PassRefPtr<SharedBuffer> value);
+    void setValueReady(PassRefPtr<IDBKey>, PassRefPtr<IDBKey> primaryKey, PassRefPtr<SharedBuffer> value, PassOwnPtr<Vector<blink::WebBlobInfo> >);
     PassRefPtr<IDBKey> idbPrimaryKey() const { return m_primaryKey; }
     IDBRequest* request() const { return m_request.get(); }
     virtual bool isKeyCursor() const { return true; }
     virtual bool isCursorWithValue() const { return false; }
 
     void deref()
     {
         if (derefBase())
             delete this;
         else if (hasOneRef())
             checkForReferenceCycle();
     }
 
 protected:
     IDBCursor(PassOwnPtr<blink::WebIDBCursor>, blink::WebIDBCursor::Direction, IDBRequest*, IDBAny* source, IDBTransaction*);
 
 private:
     PassRefPtr<IDBObjectStore> effectiveObjectStore() const;
 
     void checkForReferenceCycle();
+    void handleBlobAcks();
 
     OwnPtr<blink::WebIDBCursor> m_backend;
     RefPtr<IDBRequest> m_request;
     const blink::WebIDBCursor::Direction m_direction;
     RefPtr<IDBAny> m_source;
     RefPtr<IDBTransaction> m_transaction;
     bool m_gotValue;
     bool m_keyDirty;
     bool m_primaryKeyDirty;
     bool m_valueDirty;
     RefPtr<IDBKey> m_key;
     RefPtr<IDBKey> m_primaryKey;
     RefPtr<SharedBuffer> m_value;
+    OwnPtr<Vector<blink::WebBlobInfo> > m_blobInfo;
 };
 
 } // namespace WebCore
 
 #endif // IDBCursor_h