Reviewed by Jeremy Orlow.

        IndexedDB: Remove IDBCallbacks::onSuccess() used for null values.
        https://bugs.webkit.org/show_bug.cgi?id=53178

        Remove the IDBCallbacks::onSuccess() function that was used for
        null values, and replace such calls with calls to
        IDBCallBacks::onSuccess(SerializedScriptValue::nullValue())
        instead.

        No new functionality, so no new tests.

        * storage/IDBCallbacks.h:
        * storage/IDBCursorBackendImpl.cpp:
        (WebCore::IDBCursorBackendImpl::updateInternal):
        (WebCore::IDBCursorBackendImpl::continueFunctionInternal):
        * storage/IDBIndexBackendImpl.cpp:
        (WebCore::IDBIndexBackendImpl::openCursorInternal):
        * storage/IDBObjectStoreBackendImpl.cpp:
        (WebCore::IDBObjectStoreBackendImpl::deleteInternal):
        (WebCore::IDBObjectStoreBackendImpl::openCursorInternal):
        * storage/IDBRequest.cpp:
        * storage/IDBRequest.h:
2011-01-27  Hans Wennborg  <hans@chromium.org>

        Reviewed by Jeremy Orlow.

        IndexedDB: Remove IDBCallbacks::onSuccess() used for null values.
        https://bugs.webkit.org/show_bug.cgi?id=53178

        Remove the IDBCallbacks::onSuccess() function that was used for
        null values, and replace such calls with calls to
        IDBCallBacks::onSuccess(SerializedScriptValue::nullValue())
        instead.

        * public/WebIDBCallbacks.h:
        (WebKit::WebIDBCallbacks::onSuccess):
        * src/IDBCallbacksProxy.cpp:
        * src/IDBCallbacksProxy.h:
        * src/WebIDBCallbacksImpl.cpp:
        * src/WebIDBCallbacksImpl.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76784 268f45cc-cd09-0410-ab3c-d52691b4dbfc