Merge "Do not send the not-modified response when validating the cache."

        // do not call webcore if it is redirect. According to the code in

        // InspectorController::willSendRequest(), the response is only updated

        // when it is not redirect.

        if ((mStatusCode >= 301 && mStatusCode <= 303) || mStatusCode == 307) {

        // when it is not redirect. If we received a not-modified response from

        // the server and mCacheLoader is not null, do not send the response to

        // webkit. This is just a validation response for loading from the

        // cache.

        if ((mStatusCode >= 301 && mStatusCode <= 303) || mStatusCode == 307 ||

                (mStatusCode == 304 && mCacheLoader != null)) {

            return;

        }